moving workflow to large fs worker in mirror

Signed-off-by: greg pereira <[email protected]>

.github/workflows/instructlab_baseimages_build_push.yaml

@@ -25,7 +25,7 @@ env:
 
 jobs:
   build-and-push-builder-image:
-    if: "!contains(github.event.pull_request.labels.*.name, 'hold-tests')"
+    if: "!contains(github.event.pull_request.labels.*.name, 'hold-tests') && github.repository == 'containers-mirror/ai-lab-recipes'"
     strategy:
       matrix:
         include:
@@ -77,7 +77,7 @@ jobs:
           registry: ${{ env.REGISTRY }}
 
   build-and-push-image:
-    if: "success() && !contains(github.event.pull_request.labels.*.name, 'hold-tests')"
+    if: "success() && !contains(github.event.pull_request.labels.*.name, 'hold-tests') && github.repository == 'containers-mirror/ai-lab-recipes'"
     needs: build-and-push-builder-image
     strategy:
       matrix:
@@ -87,7 +87,7 @@ jobs:
             containerfile: training/nvidia/Containerfile
             context: training/nvidia
             platforms: linux/amd64
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-8core
     permissions:
       contents: read
       packages: write