Bump github.com/gofiber/fiber/v2 in /_example/fiber

Bumps [github.com/gofiber/fiber/v2](https://github.com/gofiber/fiber) from 2.52.9 to 2.52.11.
- [Release notes](https://github.com/gofiber/fiber/releases)
- [Commits](gofiber/fiber@v2.52.9...v2.52.11)

---
updated-dependencies:
- dependency-name: github.com/gofiber/fiber/v2
  dependency-version: 2.52.11
  dependency-type: direct:production
...

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

Author: dependabot[bot]

_example/fiber/go.mod

@@ -7,7 +7,7 @@ toolchain go1.24.5
 require (
 	github.com/arl/statsviz v0.7.1
 	github.com/gofiber/adaptor/v2 v2.2.1
-	github.com/gofiber/fiber/v2 v2.52.9
+	github.com/gofiber/fiber/v2 v2.52.11
 	github.com/soheilhy/cmux v0.1.5
 )
 

_example/fiber/go.sum

@@ -4,8 +4,8 @@ github.com/arl/statsviz v0.7.1 h1:W32VBGV/YBTMg3sBsr1Ix1bJzrykZHWNZS7quqtDqYc=
 github.com/arl/statsviz v0.7.1/go.mod h1:uFJZYUcGDeFpo/Mb9nLkq/83YUYaib2IccejOm+y1t0=
 github.com/gofiber/adaptor/v2 v2.2.1 h1:givE7iViQWlsTR4Jh7tB4iXzrlKBgiraB/yTdHs9Lv4=
 github.com/gofiber/adaptor/v2 v2.2.1/go.mod h1:AhR16dEqs25W2FY/l8gSj1b51Azg5dtPDmm+pruNOrc=
-github.com/gofiber/fiber/v2 v2.52.9 h1:YjKl5DOiyP3j0mO61u3NTmK7or8GzzWzCFzkboyP5cw=
-github.com/gofiber/fiber/v2 v2.52.9/go.mod h1:YEcBbO/FB+5M1IZNBP9FO3J9281zgPAreiI1oqg8nDw=
+github.com/gofiber/fiber/v2 v2.52.11 h1:5f4yzKLcBcF8ha1GQTWB+mpblWz3Vz6nSAbTL31HkWs=
+github.com/gofiber/fiber/v2 v2.52.11/go.mod h1:YEcBbO/FB+5M1IZNBP9FO3J9281zgPAreiI1oqg8nDw=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=