Bump peter-evans/repository-dispatch from 2 to 3

Bumps [peter-evans/repository-dispatch](https://github.com/peter-evans/repository-dispatch) from 2 to 3.
- [Release notes](https://github.com/peter-evans/repository-dispatch/releases)
- [Commits](peter-evans/repository-dispatch@v2...v3)

---
updated-dependencies:
- dependency-name: peter-evans/repository-dispatch
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ping-other-repos.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Ping w3c/mdn-spec-links
         # This is one of many possible repos we can ping. When adding other
         # repos, you can follow this w3c/mdn-spec-links one as an example.
-        uses: peter-evans/repository-dispatch@v2
+        uses: peter-evans/repository-dispatch@v3
         with:
           token: ${{ secrets.REPO_PINGER_MDN_SPEC_LINKS }}
           repository: w3c/mdn-spec-links