[workflow]: Bump jtalk/url-health-check-action from 2 to 4 (#66)

Bumps [jtalk/url-health-check-action](https://github.com/jtalk/url-health-check-action) from 2 to 4.
- [Release notes](https://github.com/jtalk/url-health-check-action/releases)
- [Commits](Jtalk/url-health-check-action@v2...v4)

---
updated-dependencies:
- dependency-name: jtalk/url-health-check-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/main.yml

@@ -43,7 +43,7 @@ jobs:
         run: flyctl deploy
 
       - name: Check the deployed service URL
-        uses: jtalk/url-health-check-action@v2
+        uses: jtalk/url-health-check-action@v4
         with:
           url: https://www.manga-spring.com/home
           follow-redirect: true