Only build CI validation is performed against pull request, and a new image is built at merge time

.github/workflows/build-ci.yaml

@@ -0,0 +1,41 @@
+# Copyright 2024 NVIDIA CORPORATION
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Run this workflow on pull requests to main/dev branches
+name: Build CI
+
+on:
+  pull_request:
+    branches:
+    - main
+    - dev-vgpu-1219
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-go@v4
+      with:
+        go-version: "^1.19.x"
+    - name: Checkout submodule
+      uses: Mushus/checkout-submodule@v1.0.1
+      with:
+        submodulePath: libvgpu
+    - run: go version
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: docker/setup-buildx-action@v1
+    - run: BUILD_PLATFORMS="linux/amd64" make all
+    - run: BUILD_PLATFORMS="linux/arm64" make all

.github/workflows/dev-image-build.yaml

@@ -12,19 +12,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Run this workflow on pull requests or merge to main/dev branches
+# Run this workflow on merge to main/dev branches
 name: Build Dev Image
 
 on:
   push:
     branches:
     - main
     - dev-vgpu-1219
-  pull_request_target:
-    types:
-    - opened
-    - synchronize
-    - reopened
 
 jobs:
   build: