feat(ci): Migrate from CircleCI to GitHub Actions

.github/workflows/pre-merge.yaml

@@ -0,0 +1,26 @@
+name: Pre Merge Checks
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  gradle:
+    runs-on: ubuntu-latest
+    env:
+      GRADLE_PUBLISH_KEY: ${{ secrets.GRADLE_PUBLISH_KEY }}
+      GRADLE_PUBLISH_SECRET: ${{ secrets.GRADLE_PUBLISH_SECRET }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Cache
+        uses: gradle/[email protected]
+      - name: Validate
+        run: ./gradlew check validatePlugins --continue
+      - name: Integration Test
+        run: ./gradlew integrationTest --info
+

.github/workflows/publish-plugin.yaml

@@ -0,0 +1,24 @@
+name: Publish to Gradle Plugin Portal
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  gradle:
+    runs-on: ubuntu-latest
+    env:
+      GRADLE_PUBLISH_KEY: ${{ secrets.GRADLE_PUBLISH_KEY }}
+      GRADLE_PUBLISH_SECRET: ${{ secrets.GRADLE_PUBLISH_SECRET }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Cache
+        uses: gradle/[email protected]
+      - name: Validate
+        run: ./gradlew check validatePlugins --continue
+      - name: Integration Test
+        run: ./gradlew integrationTest
+      - name: Publish
+        run: ./gradlew publishPlugins