build(deps): bump golang.org/x/oauth2 from 0.30.0 to 0.31.0

Bumps [golang.org/x/oauth2](https://github.com/golang/oauth2) from 0.30.0 to 0.31.0.
- [Commits](golang/oauth2@v0.30.0...v0.31.0)

---
updated-dependencies:
- dependency-name: golang.org/x/oauth2
  dependency-version: 0.31.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -1,13 +1,11 @@
 module github.com/hyperscale-stack/grpcoauth
 
-go 1.23.0
-
-toolchain go1.24.0
+go 1.24.0
 
 require (
 	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.2
 	github.com/stretchr/testify v1.11.1
-	golang.org/x/oauth2 v0.30.0
+	golang.org/x/oauth2 v0.31.0
 	google.golang.org/grpc v1.75.0
 	google.golang.org/protobuf v1.36.8
 )

go.sum

@@ -37,8 +37,8 @@ go.opentelemetry.io/otel/trace v1.37.0 h1:HLdcFNbRQBE2imdSEgm/kwqmQj1Or1l/7bW6mx
 go.opentelemetry.io/otel/trace v1.37.0/go.mod h1:TlgrlQ+PtQO5XFerSPUYG0JSgGyryXewPGyayAWSBS0=
 golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
 golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
-golang.org/x/oauth2 v0.30.0 h1:dnDm7JmhM45NNpd8FDDeLhK6FwqbOf4MLCM9zb1BOHI=
-golang.org/x/oauth2 v0.30.0/go.mod h1:B++QgG3ZKulg6sRPGD/mqlHQs5rB3Ml9erfeDY7xKlU=
+golang.org/x/oauth2 v0.31.0 h1:8Fq0yVZLh4j4YA47vHKFTa9Ew5XIrCP8LC6UeNZnLxo=
+golang.org/x/oauth2 v0.31.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=