Bump openid-client from 5.7.0 to 6.8.1

Bumps [openid-client](https://github.com/panva/openid-client) from 5.7.0 to 6.8.1.
- [Release notes](https://github.com/panva/openid-client/releases)
- [Changelog](https://github.com/panva/openid-client/blob/main/CHANGELOG.md)
- [Commits](panva/openid-client@v5.7.0...v6.8.1)

---
updated-dependencies:
- dependency-name: openid-client
  dependency-version: 6.8.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -28,7 +28,7 @@
     "jsonwebtoken": "9.0.2",
     "node-cache": "^5.1.2",
     "node-jose": "2.2.0",
-    "openid-client": "5.7.0",
+    "openid-client": "6.8.1",
     "pino": "9.12.0",
     "pino-http": "10.5.0",
     "prom-client": "15.1.3",