chore(github-action): update docker/build-push-action digest to ca877d9 (#29846)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[docker/build-push-action](https://redirect.github.com/docker/build-push-action)
| action | digest | `4f58ea7` -> `ca877d9` |

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.github/workflows/containers.build.yaml

@@ -237,7 +237,7 @@ jobs:
       # Creates a local build to run tests on
       - name: Build and Load local test-container
         if: ${{ steps.prep.outputs.goss == 'true' }}
-        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6
+        uses: docker/build-push-action@ca877d9245402d1537745e0e356eab47c3520991 # v6
         with:
           build-args: |
             VERSION=${{ steps.prep.outputs.version }}
@@ -265,7 +265,7 @@ jobs:
       # Push if not a PR, otherwise just test the build process for all requested platforms
       - name: Build and Push
         id: push
-        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6
+        uses: docker/build-push-action@ca877d9245402d1537745e0e356eab47c3520991 # v6
         with:
           build-args: |
             VERSION=${{ steps.prep.outputs.version }}