build(deps): bump workbox-precaching from 6.6.1 to 7.1.0 in /frontend (#28)

Bumps [workbox-precaching](https://github.com/googlechrome/workbox) from 6.6.1 to 7.1.0.
- [Release notes](https://github.com/googlechrome/workbox/releases)
- [Commits](https://github.com/googlechrome/workbox/commits/v7.1.0)

---
updated-dependencies:
- dependency-name: workbox-precaching
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

frontend/package.json

@@ -37,7 +37,7 @@
     "workbox-expiration": "^6.5.4",
     "workbox-google-analytics": "^6.5.4",
     "workbox-navigation-preload": "^7.0.0",
-    "workbox-precaching": "^6.5.4",
+    "workbox-precaching": "^7.1.0",
     "workbox-range-requests": "^7.0.0",
     "workbox-routing": "^7.0.0",
     "workbox-strategies": "^7.0.0",