ci: enable dependabot auto-merge (#337)

.github/workflows/ci.yml

@@ -266,7 +266,7 @@ jobs:
 
       - name: Login to DockerHub
         uses: docker/login-action@v2
-        if: ${{ !github.event.pull_request.head.repo.fork }}
+        if: ${{ github.actor != 'dependabot[bot]' && !github.event.pull_request.head.repo.fork }}
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
@@ -274,7 +274,7 @@ jobs:
       - name: Build and push the Docker image
         uses: docker/build-push-action@v3
         with:
-          push: ${{ !github.event.pull_request.head.repo.fork }}
+          push: ${{ github.actor != 'dependabot[bot]' && !github.event.pull_request.head.repo.fork }}
           tags: ${{ steps.docker_meta.outputs.tags }}
           labels: ${{ steps.docker_meta.outputs.labels }}
 

.github/workflows/dependabot.yml

@@ -0,0 +1,22 @@
+name: Dependabot auto-merge
+on: pull_request
+
+permissions:
+  contents: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v1.1.1
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+      - name: Enable auto-merge for Dependabot PRs
+        if: ${{steps.metadata.outputs.update-type == 'version-update:semver-patch'}}
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}

.github/workflows/grcov.yml

@@ -53,8 +53,9 @@ jobs:
           command: test
           args: --all
         env:
-          CARGO_INCREMENTAL: 0
+          CARGO_INCREMENTAL: '0'
           RUSTFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
+          RUSTDOCFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
           DATABASE_URL: postgres://postgres@localhost:${{ job.services.postgres.ports[5432] }}/test
 
       - name: Gather coverage data