Upgrade build-push-action to v3 (#138)

Author: sebrandon1

.github/workflows/cnf-test-partner-image.yaml

@@ -57,7 +57,7 @@ jobs:
           password: ${{ secrets.QUAY_ROBOT_TOKEN }}
 
       - name: 'Build and push the new `cnf-test-partner` image'
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v3
         with:
           push: true
           file: ${{ env.IMAGE_CONTAINER_FILE_PATH }}

.github/workflows/debug-partner-image.yaml

@@ -62,7 +62,7 @@ jobs:
           password: ${{ secrets.QUAY_ROBOT_TOKEN }}
 
       - name: 'Build and push the new `debug-partner` image'
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v3
         with:
           push: true
           file: ${{ env.IMAGE_CONTAINER_FILE_PATH }}