chore(deps): update akhileshns/heroku-deploy action to v3.14.15

Author: renovate[bot]

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Run tests
       run: bundle exec rake
     - name: Deploy to Heroku
-      uses: akhileshns/heroku-deploy@581dd286c962b6972d427fcf8980f60755c15520 # v3.13.15
+      uses: akhileshns/heroku-deploy@e3eb99d45a8e2ec5dca08735e089607befa4bf28 # v3.14.15
       with:
         heroku_api_key: ${{secrets.HEROKU_API_KEY}}
         heroku_app_name: "devdocs"