Bump golang.org/x/oauth2 from 0.18.0 to 0.19.0

Bumps [golang.org/x/oauth2](https://github.com/golang/oauth2) from 0.18.0 to 0.19.0.
- [Commits](golang/oauth2@v0.18.0...v0.19.0)

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

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

go.mod

@@ -23,7 +23,7 @@ require (
 	github.com/stretchr/testify v1.9.0 // MIT
 	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225
 	golang.org/x/mod v0.17.0
-	golang.org/x/oauth2 v0.18.0
+	golang.org/x/oauth2 v0.19.0
 	golang.org/x/sync v0.6.0
 	golang.org/x/term v0.19.0
 	golang.org/x/text v0.14.0
@@ -63,7 +63,6 @@ require (
 	golang.org/x/sys v0.19.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
 	google.golang.org/api v0.169.0 // indirect
-	google.golang.org/appengine v1.6.8 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240304161311-37d4d3c04a78 // indirect
 	google.golang.org/grpc v1.62.0 // indirect
 	google.golang.org/protobuf v1.33.0 // indirect