build(deps): bump google.golang.org/grpc in /examples

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.43.0 to 1.56.3.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.43.0...v1.56.3)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
...

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

examples/go.mod

@@ -6,20 +6,20 @@ require (
 	github.com/coreos/go-oidc/v3 v3.1.0
 	github.com/dexidp/dex/api/v2 v2.0.0
 	github.com/spf13/cobra v1.3.0
-	golang.org/x/oauth2 v0.0.0-20211104180415-d3ed0bb246c8
-	google.golang.org/grpc v1.43.0
+	golang.org/x/oauth2 v0.7.0
+	google.golang.org/grpc v1.56.3
 )
 
 require (
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	golang.org/x/crypto v0.1.0 // indirect
-	golang.org/x/net v0.7.0 // indirect
-	golang.org/x/sys v0.5.0 // indirect
-	golang.org/x/text v0.7.0 // indirect
+	golang.org/x/net v0.9.0 // indirect
+	golang.org/x/sys v0.7.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20220114231437-d2e6a121cae0 // indirect
-	google.golang.org/protobuf v1.27.1 // indirect
+	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/square/go-jose.v2 v2.6.0 // indirect
 )