build: fix auto-start-ci script path

PR-URL: #34588
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>

.github/workflows/auto-start-ci.yml

@@ -62,4 +62,4 @@ jobs:
           ncu-config set repo ${{ env.REPOSITORY }}
 
       - name: Start CI
-        run: ./tools/start-ci.sh ${{ secrets.GITHUB_TOKEN }} ${{ env.OWNER }} ${{ env.REPOSITORY }} $(echo '${{ steps.get_prs_for_ci.outputs.data }}' | jq '.repository.pullRequests.nodes | map(.number) | .[]')
+        run: ./tools/actions/start-ci.sh ${{ secrets.GITHUB_TOKEN }} ${{ env.OWNER }} ${{ env.REPOSITORY }} $(echo '${{ steps.get_prs_for_ci.outputs.data }}' | jq '.repository.pullRequests.nodes | map(.number) | .[]')