Bump elliptic from 6.5.3 to 6.5.4

Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.3 to 6.5.4.
- [Release notes](https://github.com/indutny/elliptic/releases)
- [Commits](https://github.com/indutny/elliptic/compare/v6.5.3...v6.5.4)

Signed-off-by: dependabot[bot] <support@github.com>

package-lock.json

@@ -6,10 +6,12 @@
     "": {
       "name": "harmony-sdk-core",
       "license": "MIT",
-      "workspaces": ["packages/*"],
+      "workspaces": [
+        "packages/*"
+      ],
       "dependencies": {
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-        "tslib": "^1.10.0",
+        "tslib": "^2.4.0",
         "typedoc-plugin-internal-external": "^2.1.1"
       },
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@@ -71,7 +73,7 @@
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         "husky": "^1.1.2",
         "jest": "^23.4.2",
-        "jest-fetch-mock": "^1.6.6",
+        "jest-fetch-mock": "^3.0.3",
         "jest-json-schema": "^2.0.1",
         "jest-watch-typeahead": "^0.2.0",
         "jsdoc": "^3.6.3",
@@ -82,7 +84,7 @@
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         "protobufjs": "^6.8.8",
         "rimraf": "^2.6.2",
-        "rollup": "^0.66.6",
+        "rollup": "1.26.3",
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         "rollup-plugin-commonjs": "^9.2.0",
@@ -97,7 +99,7 @@
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         "ts-jest": "^23.1.3",
         "ts-node": "^7.0.1",
-        "tslib": "^1.11.1",
+        "tslib": "^2.4.0",
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         "tslint-config-prettier": "^1.15.0",
         "typedoc": "^0.17.0-3",
@@ -2476,15 +2478,6 @@
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-      "dev": true,
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@@ -3451,15 +3444,6 @@
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@@ -6413,6 +6397,12 @@
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@@ -6738,7 +6728,9 @@
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       "dev": true,
-      "engines": ["node >= 0.8"],
+      "engines": [
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@@ -7920,7 +7912,9 @@
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       "dev": true,
-      "engines": ["node >= 6.0"],
+      "engines": [
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@@ -8195,13 +8189,11 @@
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-      "dev": true,
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@@ -9523,7 +9515,9 @@
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-      "engines": ["node >=0.6.0"]
+      "engines": [
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@@ -9934,12 +9928,16 @@
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-      "bundleDependencies": ["node-pre-gyp"],
+      "bundleDependencies": [
+        "node-pre-gyp"
+      ],
       "deprecated": "fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.",
       "dev": true,
       "hasInstallScript": true,
       "optional": true,
-      "os": ["darwin"],
+      "os": [
+        "darwin"
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         "nan": "^2.12.1",
@@ -10680,7 +10678,11 @@
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       "resolved": "https://registry.npmjs.org/ganache-cli/-/ganache-cli-6.12.1.tgz",
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-      "bundleDependencies": ["source-map-support", "yargs", "ethereumjs-util"],
+      "bundleDependencies": [
+        "source-map-support",
+        "yargs",
+        "ethereumjs-util"
+      ],
       "deprecated": "ganache-cli is now ganache; visit https://trfl.io/g7 for details",
       "dev": true,
       "dependencies": {
@@ -14358,13 +14360,13 @@
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     },
     "node_modules/jest-fetch-mock": {
-      "version": "1.7.5",
+      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/jest-fetch-mock/-/jest-fetch-mock-1.7.5.tgz",
+      "resolved": "https://registry.npmjs.org/jest-fetch-mock/-/jest-fetch-mock-3.0.3.tgz",
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       "dev": true,
       "dependencies": {
-        "cross-fetch": "^2.2.2",
+        "cross-fetch": "^3.0.4",
-        "promise-polyfill": "^7.1.1"
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@@ -15931,7 +15933,9 @@
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-      "engines": ["node >= 0.2.0"]
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@@ -15954,7 +15958,9 @@
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@@ -17520,12 +17526,22 @@
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@@ -17542,6 +17558,25 @@
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@@ -19134,9 +19169,9 @@
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@@ -20009,16 +20044,17 @@
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       "dev": true,
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+        "@types/estree": "*",
-        "@types/node": "*"
+        "@types/node": "*",
+        "acorn": "^7.1.0"
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-        "rollup": "bin/rollup"
+        "rollup": "dist/bin/rollup"
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     "node_modules/rollup-plugin-alias": {
@@ -20348,6 +20384,18 @@
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+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.1.tgz",
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+      "dev": true,
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
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@@ -20399,6 +20447,12 @@
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@@ -22443,9 +22497,9 @@
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@@ -23899,12 +23967,6 @@
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@@ -24278,7 +24340,7 @@
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@@ -24294,36 +24356,9 @@
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