ci: skip image publishing for dependabot pushes (#66)

* Skip image publishing for Dependabot pushes

* Update .github/workflows/build.yml

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Fix image branch tag in CI

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: raeperd.park <raeperd@Karrot-Raeperdpark-C6X3VL249H.local>

Author: 3 people

.github/workflows/build.yml

@@ -28,14 +28,16 @@ jobs:
           path: build/libs/*.jar
 
       - uses: docker/login-action@v4
-        if: github.event_name == 'push'
+        if: github.event_name == 'push' && github.actor != 'dependabot[bot]'
         with:
           registry: ghcr.io/raeperd
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Get branch name
-        if: github.event_name == 'push'
-        run: echo "BRANCH_NAME=$(echo ${GITHUB_REF#refs/heads/} | tr /# -)" >> $GITHUB_ENV
+        if: github.event_name == 'push' && github.actor != 'dependabot[bot]'
+        run: |
+          BRANCH_NAME=$(printf '%s' "$GITHUB_REF_NAME" | tr '/#' '-')
+          echo "BRANCH_NAME=$BRANCH_NAME" >> "$GITHUB_ENV"
       - name: Build container image
-        if: github.event_name == 'push'
-        run: ./gradlew jib -Djib.to.tags=${{ env.BRANCH_NAME }}
+        if: github.event_name == 'push' && github.actor != 'dependabot[bot]'
+        run: ./gradlew jib -Djib.to.tags="$BRANCH_NAME"