chore(deps): bump @github/relative-time-element from 4.4.5 to 4.4.8

Bumps [@github/relative-time-element](https://github.com/github/relative-time-element) from 4.4.5 to 4.4.8.
- [Release notes](https://github.com/github/relative-time-element/releases)
- [Commits](github/relative-time-element@v4.4.5...v4.4.8)

---
updated-dependencies:
- dependency-name: "@github/relative-time-element"
  dependency-version: 4.4.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -71,7 +71,7 @@
   },
   "dependencies": {
     "@github/mini-throttle": "^2.1.1",
-    "@github/relative-time-element": "^4.4.5",
+    "@github/relative-time-element": "^4.4.8",
     "@github/tab-container-element": "^4.8.2",
     "@lit-labs/react": "1.2.1",
     "@oddbird/popover-polyfill": "^0.5.2",