Add build trigger to external repo

.github/workflows/trigger-test.yml

@@ -0,0 +1,40 @@
+name: Trigger Private Repo
+on:
+  pull_request:
+
+jobs:
+  trigger:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Extract semver tag
+        id: semver
+        run: |
+          REF_NAME="${{ github.ref_name }}"
+          # Check if ref matches semver pattern (e.g., v1.2.3 or 1.2.3)
+          if [[ "$REF_NAME" =~ ^v?[0-9]+\.[0-9]+\.[0-9]+.*$ ]]; then
+            echo "semver=$REF_NAME" >> $GITHUB_OUTPUT
+            echo "is_semver=true" >> $GITHUB_OUTPUT
+          else
+            echo "semver=" >> $GITHUB_OUTPUT
+            echo "is_semver=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Trigger private repo workflow
+        run: |
+          curl -L \
+            -X POST \
+            -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer ${{ secrets.PRIVATE_REPO_PAT }}" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/locusrobotics/locus_orbbec_ros2/dispatches \
+            -d '{
+              "event_type":"trigger-from-public",
+              "client_payload":{
+                "semver":"${{ steps.semver.outputs.semver }}",
+                "is_semver":"${{ steps.semver.outputs.is_semver }}",
+                "origin_repo":"${{ github.repository }}",
+                "sha":"${{ github.sha }}",
+                "actor":"${{ github.actor }}",
+                "ref_type":"${{ github.ref_type }}"
+                }
+              }'