Fix buildx-image workflow

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/buildx-image.yml

@@ -43,7 +43,7 @@ jobs:
         uses: docker/setup-buildx-action@v1
       -
         name: Login to DockerHub
-        if: inputs.dry-run != 'true'
+        if: github.event.inputs.dry-run != 'true'
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
@@ -52,12 +52,12 @@ jobs:
         name: Create
         run: |
           DRYRUN_FLAG=""
-          if [ "${{ inputs.dry-run }}" = "true" ]; then
+          if [ "${{ github.event.inputs.dry-run }}" = "true" ]; then
             DRYRUN_FLAG="--dry-run"
           fi
 
-          SOURCE_TAG="${{ inputs.source-tag }}"
-          DEST_TAG="${{ inputs.dest-tag }}"
+          SOURCE_TAG="${{ github.event.inputs.source-tag }}"
+          DEST_TAG="${{ github.event.inputs.dest-tag }}"
           if [ "${{ matrix.flavor }}" != "" ]; then
             if [ "$SOURCE_TAG" = "latest" ]; then
               SOURCE_TAG="${{ matrix.flavor }}"