Update peter-evans/repository-dispatch action to v4 (#46346)

Co-authored-by: Renovate Bot <[email protected]>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/20316949298

Upstream-Ref: Automattic/jetpack@474d311

Author: anomiex

.github/workflows/e2e-tests.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Create a repository dispatch
-        uses: peter-evans/repository-dispatch@v3
+        uses: peter-evans/repository-dispatch@v4
         with:
           token: ${{ secrets.REPO_DISPATCH_TOKEN }}
           repository: automattic/jetpack