chore(deps): update docker/setup-buildx-action action to v2.8.0 (#539)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -127,7 +127,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2.2.0
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2.7.0
+        uses: docker/setup-buildx-action@v2.8.0
       - name: PrepareReg Names
         # yamllint disable rule:line-length
         run: |