chore: Refactor step to publicly available kaniko-action

.gitea/workflows/actions.yaml

@@ -31,24 +31,21 @@ jobs:
             --verifyReleaseCmd 'echo "$${nextRelease.version}" > .version'
         env:
           GIT_CREDENTIALS: djpbessems:${{ secrets.GIT_APIKEY }}
+      - name: Set output variable
+        id: sem_rel
+        run: |
+          echo "version=$(cat .version)" >> $GITHUB_OUTPUT
 
   Container image (docker.io):
     container: gcr.io/kaniko-project/executor:debug
     runs-on: ubuntu-latest
     steps:
-      - run: |
-          export VALID_TAG=$(cat .version 2> /dev/null) && [ -n "$VALID_TAG" ] || (echo 'No release tag - exiting'; exit 0)
-      - run: |
-          wget https://github.com/jqlang/jq/releases/download/jq-1.6/jq-linux64 -qO /bin/jq
-          chmod +x /bin/jq
-      - run: |
-          /bin/jq '.auths["https://index.docker.io/v1/"].auth="'"$(echo -n $DOCKER_USERNAME':'$DOCKER_PASSWORD | base64)"'"' --null-input > /kaniko/.docker/config.json
-        env:
-          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
-          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
-      - run: |
-          /kaniko/executor \
-            --dockerfile=Dockerfile \
-            --context=dir://. \
-            --destination=docker.io/djpbessems/spamasaurusrex:latest \
-            --destination=docker.io/djpbessems/spamasaurusrex:$VALID_TAG
+      - uses: docker/login-action@v1
+        with:
+          registry: docker.io
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - uses: int128/kaniko-action@v1
+        with:
+          push: true
+          tags: ${{ steps.sem_rel.outputs.version }}