chore: update owlbot-cli committish (#3273)

In this PR:
- Update owlbot-cli committish which contains latest go (1.23.2).

Author: JoeWang1127

sdk-platform-java/.cloudbuild/library_generation/library_generation.Dockerfile

@@ -32,7 +32,7 @@ FROM gcr.io/cloud-devrel-public-resources/python
 SHELL [ "/bin/bash", "-c" ]
 
 
-ARG OWLBOT_CLI_COMMITTISH=ac84fa5c423a0069bbce3d2d869c9730c8fdf550
+ARG OWLBOT_CLI_COMMITTISH=38fe6f89a2339ee75c77739b31b371f601b01bb3
 ARG PROTOC_VERSION=25.5
 ARG GRPC_VERSION=1.67.1
 ENV HOME=/home