ci: Trigger doc test whenever a new tag is added (#539)

* ci: tTrigger docs test after dev npm publish

* chore: whitespace

* fix: add new line at the end of file

.github/workflows/devpackpublish.yml

@@ -48,4 +48,12 @@ jobs:
           git config --local user.email "[email protected]"
           git add .
           git commit -m "[CI Skip] ci: publish prerelease" -n
-          git push
+          git push
+      - name: Repository Dispatch
+        uses: peter-evans/repository-dispatch@v2
+        with:
+          token: ${{ secrets.REPO_ACCESS_TOKEN }}
+          repository: KILTProtocol/docs
+          event-type: sdk-update
+          client-payload: '{"latestTag": "${{ steps.package_version.outputs.package_version }}"}'
+