Bump io.grpc:grpc-okhttp from 1.60.0 to 1.61.1 in /examples (#516)

Bumps [io.grpc:grpc-okhttp](https://github.com/grpc/grpc-java) from 1.60.0 to 1.61.1.
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.60.0...v1.61.1)

---
updated-dependencies:
- dependency-name: io.grpc:grpc-okhttp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

examples/gradle/libs.versions.toml

@@ -13,7 +13,7 @@ kotlinx-coroutines-core = { group = "org.jetbrains.kotlinx", name = "kotlinx-cor
 grpc-protobuf = { group = "io.grpc", name = "grpc-protobuf", version = "1.60.0" }
 grpc-protobuf-lite = { group = "io.grpc", name = "grpc-protobuf-lite", version = "1.60.0" }
 grpc-netty = { group = "io.grpc", name = "grpc-netty", version = "1.60.0" }
-grpc-okhttp = { group = "io.grpc", name = "grpc-okhttp", version = "1.60.0" }
+grpc-okhttp = { group = "io.grpc", name = "grpc-okhttp", version = "1.61.1" }
 grpc-testing = { group = "io.grpc", name = "grpc-testing", version = "1.60.0" }
 grpc-stub = { group = "io.grpc", name = "grpc-stub", version = "1.60.0" }
 grpc-kotlin-stub = { group = "io.grpc", name = "grpc-kotlin-stub", version = "1.4.1" }