[INFRA] gha - Bump peter-evans/repository-dispatch from 1 to 2 (#44)

Bumps [peter-evans/repository-dispatch](https://github.com/peter-evans/repository-dispatch) from 1 to 2.
- [Release notes](https://github.com/peter-evans/repository-dispatch/releases)
- [Commits](peter-evans/repository-dispatch@v1...v2)

.github/workflows/build_demo.yml

@@ -21,7 +21,7 @@ jobs:
           path: LICENSE
       - name: Repository Dispatch
         if: startsWith(github.ref, 'refs/tags/')
-        uses: peter-evans/repository-dispatch@v1
+        uses: peter-evans/repository-dispatch@v2
         with:
           token: ${{ secrets.GH_RELEASE_TOKEN }}
           repository: process-analytics/github-actions-playground