Use power image for collector builds

Author: Molter73

.github/workflows/collector.yml

@@ -33,26 +33,14 @@ env:
   ADDRESS_SANITIZER: ${{ contains(github.event.pull_request.labels.*.name, 'address-sanitizer') }}
 
 jobs:
-  prepare-build-collector:
-    name: Prepare builders for collector
-    runs-on: ubuntu-24.04
-    outputs:
-      local-exclude: ${{ steps.arch.outputs.local-exclude || '[]' }}
-
-    steps:
-      - name: Check arches for local build
-        if: ${{ ! contains(inputs.architectures, 'ppc64le') }}
-        id: arch
-        run: echo 'local-exclude=[{"arch":"ppc64le"}]' >> "$GITHUB_OUTPUT"
-
   build-collector-image:
     name: Local collector image ${{ matrix.arch }}
-    needs: prepare-build-collector
     strategy:
       matrix:
         arch: [amd64, arm64, ppc64le]
-        exclude: ${{ fromJSON(needs.prepare-build-collector.outputs.local-exclude) }}
-    runs-on: ${{ (matrix.arch == 'arm64' && 'ubuntu-24.04-arm') || 'ubuntu-24.04' }}
+    runs-on: ${{ (matrix.arch == 'arm64' && 'ubuntu-24.04-arm') ||
+                 (matrix.arch == 'ppc64le' && 'ubuntu-24.04-ppc64le') ||
+                'ubuntu-24.04' }}
 
     env:
       PLATFORM: linux/${{ matrix.arch }}
@@ -63,11 +51,6 @@ jobs:
         with:
           submodules: true
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-        with:
-          image: tonistiigi/binfmt:qemu-v8.1.5
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3