build(deps): bump github.com/coreos/go-oidc/v3 in /examples

Bumps [github.com/coreos/go-oidc/v3](https://github.com/coreos/go-oidc) from 3.11.0 to 3.12.0.
- [Release notes](https://github.com/coreos/go-oidc/releases)
- [Commits](https://github.com/coreos/go-oidc/compare/v3.11.0...v3.12.0

)

---
updated-dependencies:
- dependency-name: github.com/coreos/go-oidc/v3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

examples/go.mod

@@ -3,7 +3,7 @@ module github.com/dexidp/dex/examples
 go 1.23
 
 require (
-	github.com/coreos/go-oidc/v3 v3.11.0
+	github.com/coreos/go-oidc/v3 v3.12.0
 	github.com/dexidp/dex/api/v2 v2.2.0
 	github.com/spf13/cobra v1.8.1
 	golang.org/x/oauth2 v0.24.0

examples/go.sum

-github.com/coreos/go-oidc/v3 v3.11.0 h1:Ia3MxdwpSw702YW0xgfmP1GVCMA9aEFWu12XUZ3/OtI=
-github.com/coreos/go-oidc/v3 v3.11.0/go.mod h1:gE3LgjOgFoHi9a4ce4/tJczr0Ai2/BoDhf0r5lltWI0=
+github.com/coreos/go-oidc/v3 v3.12.0 h1:sJk+8G2qq94rDI6ehZ71Bol3oUHy63qNYmkiSjrc/Jo=
+github.com/coreos/go-oidc/v3 v3.12.0/go.mod h1:gE3LgjOgFoHi9a4ce4/tJczr0Ai2/BoDhf0r5lltWI0=
 github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=