Bump github.com/ClusterCockpit/cc-lib/v2 from 2.8.0 to 2.9.0

Bumps [github.com/ClusterCockpit/cc-lib/v2](https://github.com/ClusterCockpit/cc-lib) from 2.8.0 to 2.9.0.
- [Release notes](https://github.com/ClusterCockpit/cc-lib/releases)
- [Commits](https://github.com/ClusterCockpit/cc-lib/compare/v2.8.0...v2.9.0)

---
updated-dependencies:
- dependency-name: github.com/ClusterCockpit/cc-lib/v2
  dependency-version: 2.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -4,7 +4,7 @@ go 1.25.0
 
 require (
 	github.com/ClusterCockpit/cc-backend v1.5.0
-	github.com/ClusterCockpit/cc-lib/v2 v2.8.0
+	github.com/ClusterCockpit/cc-lib/v2 v2.9.0
 	github.com/ClusterCockpit/cc-line-protocol/v2 v2.4.0
 	github.com/golang-jwt/jwt/v4 v4.5.2
 	github.com/google/gops v0.3.29

go.sum

@@ -1,7 +1,7 @@
 github.com/ClusterCockpit/cc-backend v1.5.0 h1:KGAxcb6wB9h2ICX1im3ldHJvmkslzV980aweUtAXCKM=
 github.com/ClusterCockpit/cc-backend v1.5.0/go.mod h1:ASdOqR16C0b23KSvzh0BafydIvgA3RzZocQ/hQ1hhN8=
-github.com/ClusterCockpit/cc-lib/v2 v2.8.0 h1:ROduRzRuusi+6kLB991AAu3Pp2AHOasQJFJc7JU/n/E=
-github.com/ClusterCockpit/cc-lib/v2 v2.8.0/go.mod h1:FwD8vnTIbBM3ngeLNKmCvp9FoSjQZm7xnuaVxEKR23o=
+github.com/ClusterCockpit/cc-lib/v2 v2.9.0 h1:mzUYakcjwb+UP5II4jOvr36rSYct90gXBbtUg+nvm9c=
+github.com/ClusterCockpit/cc-lib/v2 v2.9.0/go.mod h1:FwD8vnTIbBM3ngeLNKmCvp9FoSjQZm7xnuaVxEKR23o=
 github.com/ClusterCockpit/cc-line-protocol/v2 v2.4.0 h1:hIzxgTBWcmCIHtoDKDkSCsKCOCOwUC34sFsbD2wcW0Q=
 github.com/ClusterCockpit/cc-line-protocol/v2 v2.4.0/go.mod h1:y42qUu+YFmu5fdNuUAS4VbbIKxVjxCvbVqFdpdh8ahY=
 github.com/DATA-DOG/go-sqlmock v1.5.2 h1:OcvFkGmslmlZibjAjaHm3L//6LiuBgolP7OputlJIzU=