move some easy build jobs (DCO, Spotless) over to github (#4161)

Signed-off-by: Antoine Toulme <antoine@lunar-ocean.com>

.circleci/config.yml

@@ -137,24 +137,6 @@ jobs:
           destination: distributions
           when: always
 
-  dco:
-    executor: besu_executor_small
-    steps:
-      - checkout
-      - restore_gradle_cache
-      - run:
-          name: DCO check
-          command: |
-            ./scripts/dco_check.sh
-  spotless:
-    executor: besu_executor_small
-    steps:
-      - checkout
-      - restore_gradle_cache
-      - run:
-          name: Spotless
-          command: |
-            ./gradlew --no-daemon --parallel clean spotlessCheck
   testWindows:
     executor: win/default
     steps:
@@ -399,12 +381,7 @@ workflows:
   version: 2
   default:
     jobs:
-      - dco
-      - spotless
-      - assemble:
-          requires:
-            - dco
-            - spotless
+      - assemble
       - unitTests:
            requires:
             - assemble

.github/workflows/checks.yml

@@ -0,0 +1,34 @@
+name: checks
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  spotless:
+    runs-on: ubuntu-latest
+    if: ${{ github.actor != 'dependabot[bot]' }}
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v3
+      - name: Set up Java
+        uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 11
+          cache: gradle
+      - name: spotless
+        run: ./gradlew --no-daemon --parallel clean spotlessCheck
+  dco:
+    runs-on: ubuntu-latest
+    if: ${{ github.actor != 'dependabot[bot]' }}
+    steps:
+      - name: Get PR Commits
+        id: 'get-pr-commits'
+        uses: tim-actions/get-pr-commits@v1.2.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: DCO Check
+        uses: tim-actions/dco@v1.1.0
+        with:
+          commits: ${{ steps.get-pr-commits.outputs.commits }}