Limit build workflow to manual dispatch only

.github/workflows/build-images.yaml

@@ -1,18 +1,6 @@
 name: Build Cross-Compiled ROS 2 Images
 
 on:
-  push:
-    branches: [main]
-    paths-ignore:
-      - "**.md"
-      - ".github/ISSUE_TEMPLATE/**"
-      - ".github/pull_request_template.md"
-  pull_request:
-    branches: [main]
-    paths-ignore:
-      - "**.md"
-      - ".github/ISSUE_TEMPLATE/**"
-      - ".github/pull_request_template.md"
   workflow_dispatch:
     inputs:
       platform:
@@ -42,8 +30,8 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        platform: ${{ github.event_name == 'workflow_dispatch' && fromJSON(format('["{0}"]', inputs.platform)) || fromJSON('["rk3588"]') }}
-        ros_distro: ${{ github.event_name == 'workflow_dispatch' && fromJSON(format('["{0}"]', inputs.ros_distro)) || fromJSON('["rolling"]') }}
+        platform: ${{ fromJSON(format('["{0}"]', inputs.platform)) }}
+        ros_distro: ${{ fromJSON(format('["{0}"]', inputs.ros_distro)) }}
       fail-fast: false
 
     steps:
@@ -57,7 +45,7 @@ jobs:
             network=host
 
       - name: Log in to GitHub Container Registry
-        if: github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && inputs.push_images)
+        if: inputs.push_images
         uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
@@ -70,7 +58,7 @@ jobs:
           docker compose -f cross_compile/compose.yaml build cc-base
 
       - name: Push cc-base
-        if: github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && inputs.push_images)
+        if: inputs.push_images
         run: |
           docker tag cc-base:latest \
             ${{ env.REGISTRY }}/${{ env.IMAGE_NAMESPACE }}/cc-base:latest
@@ -84,7 +72,7 @@ jobs:
           BUILDKIT_INLINE_CACHE: "1"
 
       - name: Push cc-toolchain
-        if: github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && inputs.push_images)
+        if: inputs.push_images
         run: |
           docker tag ${{ matrix.platform }}/cc-toolchain:latest \
             ${{ env.REGISTRY }}/${{ env.IMAGE_NAMESPACE }}/${{ matrix.platform }}/cc-toolchain:latest
@@ -98,7 +86,7 @@ jobs:
           BUILDKIT_INLINE_CACHE: "1"
 
       - name: Push vendor-packages
-        if: github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && inputs.push_images)
+        if: inputs.push_images
         run: |
           docker tag ${{ matrix.platform }}/cc-vendor-packages:latest \
             ${{ env.REGISTRY }}/${{ env.IMAGE_NAMESPACE }}/${{ matrix.platform }}/cc-vendor-packages:latest
@@ -112,7 +100,7 @@ jobs:
           BUILDKIT_INLINE_CACHE: "1"
 
       - name: Push ROS 2 image
-        if: github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && inputs.push_images)
+        if: inputs.push_images
         run: |
           docker tag ${{ matrix.platform }}/cc-ros-${{ matrix.ros_distro }}:latest \
             ${{ env.REGISTRY }}/${{ env.IMAGE_NAMESPACE }}/${{ matrix.platform }}/cc-ros-${{ matrix.ros_distro }}:latest