chore(deps): update docker/setup-buildx-action action to v3.6.1 (#864)

| datasource  | package                    | from   | to     |
| ----------- | -------------------------- | ------ | ------ |
| github-tags | docker/setup-buildx-action | v3.4.0 | v3.6.1 |

Author: stackable-bot

.github/actions/build-product-image/action.yml

@@ -43,7 +43,7 @@ runs:
         swap-storage: true
 
     - name: Setup Docker Buildx
-      uses: docker/setup-buildx-action@4fd812986e6c8c2a69e18311145f9371337f27d4 # v3.4.0
+      uses: docker/setup-buildx-action@988b5a0280414f521da01fcc63a27aeeb4b104db # v3.6.1
 
       # NOTE (@Techassi): Why do we install python via apt and not the setup-python action?
     - name: Setup Python

.github/workflows/release.yml

@@ -62,7 +62,7 @@ jobs:
           swap-storage: true
 
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
-      - uses: docker/setup-buildx-action@4fd812986e6c8c2a69e18311145f9371337f27d4 # v3.4.0
+      - uses: docker/setup-buildx-action@988b5a0280414f521da01fcc63a27aeeb4b104db # v3.6.1
       # As of 2024-04-08 this throws
       # Error: The version '3.x' with architecture 'arm64' was not found for Ubuntu 22.04.
       # This is because it currently only bundles arm64 packages for darwin.