Bump ex_json_schema from 0.6.2 to 0.9.1

Bumps [ex_json_schema](https://github.com/jonasschmidt/ex_json_schema) from 0.6.2 to 0.9.1.
- [Release notes](https://github.com/jonasschmidt/ex_json_schema/releases)
- [Commits](https://github.com/jonasschmidt/ex_json_schema/commits)

---
updated-dependencies:
- dependency-name: ex_json_schema
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

apps/block_scout_web/mix.exs

@@ -128,7 +128,7 @@ defmodule BlockScoutWeb.Mixfile do
       # `:cowboy` `~> 2.0` and Phoenix 1.4 compatibility
       {:websocket_client, "~> 1.3"},
       {:wobserver, "~> 0.2.0", github: "poanetwork/wobserver", branch: "support-https"},
-      {:ex_json_schema, "~> 0.6.2"}
+      {:ex_json_schema, "~> 0.9.1"}
     ]
   end
 

mix.lock

@@ -43,7 +43,7 @@
   "ex_cldr_numbers": {:hex, :ex_cldr_numbers, "2.16.1", "aea1cecbf19dfb6ac82658d05685015172866cf1a4ce0778f58157442ccf015d", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:ex_cldr, "~> 2.18", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:ex_cldr_currencies, "~> 2.8", [hex: :ex_cldr_currencies, repo: "hexpm", optional: false]}, {:ex_doc, "~> 0.18", [hex: :ex_doc, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "ba7a6f9f50aaa7759d05e508a333747cf670c823b2857780b025f3c421f4f1d3"},
   "ex_cldr_units": {:hex, :ex_cldr_units, "2.8.1", "f3fc6da7ff9795f70df16a9c8616df801dbc91831e2c4b994973d7199139b721", [:mix], [{:cldr_utils, "~> 2.6", [hex: :cldr_utils, repo: "hexpm", optional: false]}, {:ex_cldr, "~> 2.13", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:ex_cldr_lists, "~> 2.2", [hex: :ex_cldr_lists, repo: "hexpm", optional: false]}, {:ex_cldr_numbers, "~> 2.12", [hex: :ex_cldr_numbers, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "e2e0f5cebdd94dc75142a8cc2fcaec3ad6de5c1501adfe55369caeb4115e7b75"},
   "ex_doc": {:hex, :ex_doc, "0.28.2", "e031c7d1a9fc40959da7bf89e2dc269ddc5de631f9bd0e326cbddf7d8085a9da", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "51ee866993ffbd0e41c084a7677c570d0fc50cb85c6b5e76f8d936d9587fa719"},
-  "ex_json_schema": {:hex, :ex_json_schema, "0.6.2", "de23d80478215987469c81688208fe0ff440ee0e0e6ae2268fcadbb2ff35df9d", [:mix], [], "hexpm", "2f25c57e919ffc5d6b02f2f130548284342dd6c3e99555ee0beeb9f2d2366a96"},
+  "ex_json_schema": {:hex, :ex_json_schema, "0.9.1", "1de550a267198aa833f4ad043b97241f2b0a3671bb5869581efef0f165b58694", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}], "hexpm", "7041222de29d33308cef68ec81da9025d141951197bd9bb6e49dc945d195cd69"},
   "ex_keccak": {:hex, :ex_keccak, "0.4.0", "4eb8620c8a20a546e2d297b5ce3de150a90db0fdc4ba1dd88c854ace9ee47603", [:mix], [{:rustler, "~> 0.24", [hex: :rustler, repo: "hexpm", optional: false]}], "hexpm", "209ec5591d3cf79f9bdcdedf39c3d7a1fb208321e2b6de2660801117ae386f10"},
   "ex_machina": {:hex, :ex_machina, "2.7.0", "b792cc3127fd0680fecdb6299235b4727a4944a09ff0fa904cc639272cd92dc7", [:mix], [{:ecto, "~> 2.2 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_sql, "~> 3.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}], "hexpm", "419aa7a39bde11894c87a615c4ecaa52d8f107bbdd81d810465186f783245bf8"},
   "ex_rlp": {:hex, :ex_rlp, "0.5.3", "9055bddade545ee3e734aaad62c4b4d08211834da3beb43ae269b75785909e5e", [:mix], [], "hexpm", "a755a5f8f9f66079f3ecbe021536b949077fac0df963d9e59a20321bab28722d"},