Force docker rebuild

Author: vinser52

.github/workflows/build-cachelib-docker.yml

@@ -44,7 +44,7 @@ jobs:
           fetch-depth: 0
 
       - name: Pull the image or rebuild and push it
-        run: cd $WORKDIR && ${{ matrix.CONFIG }} ./pull-or-rebuild-image.sh $FORCE_IMAGE_ACTION
+        run: cd $WORKDIR && ${{ matrix.CONFIG }} ./pull-or-rebuild-image.sh rebuild
 
       - name: Run the build
         run: cd $WORKDIR && ${{ matrix.CONFIG }} ./build.sh