chore(deps): bump prom-client from 15.1.1 to 15.1.3 (#630)

Bumps [prom-client](https://github.com/siimon/prom-client) from 15.1.1 to 15.1.3.
- [Release notes](https://github.com/siimon/prom-client/releases)
- [Changelog](https://github.com/siimon/prom-client/blob/master/CHANGELOG.md)
- [Commits](siimon/prom-client@v15.1.1...v15.1.3)

---
updated-dependencies:
- dependency-name: prom-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -68,7 +68,7 @@
     "morgan": "^1.10.0",
     "on-finished": "^2.4.1",
     "pg": "^8.11.5",
-    "prom-client": "^15.1.1",
+    "prom-client": "^15.1.3",
     "request": "^2.88.2",
     "request-promise-native": "^1.0.9",
     "sequelize": "^6.37.2",