CI: Rename BSP check for clearer project settings (#747)

In the previous implementation, the job just appeared as "check" in the
branch protection settings, this renames it to
"check-tier-1-bsps-build-stable" so it's a little clearer.

.github/workflows/build-bsp.yml

@@ -65,15 +65,15 @@ jobs:
         name: "${{ matrix.bsp.name }}-${{ matrix.toolchain }}"
         path: output
 
-  check:
+  check-tier-1-bsps-build-stable:
     runs-on: ubuntu-latest
     needs: [setup, build]
     steps:
       - name: Download artifacts
         uses: actions/download-artifact@v4
         with:
           path: successful-jobs
-      - name: Tier 1 BSPs built on stable
+      - name: Do checks
         env:
           MATRIX: ${{ needs.setup.outputs.matrix }}
         run: |