chore(deps): update all dependencies (#2260)

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

Author: 3 people

packages/gapic-generator/WORKSPACE

@@ -60,9 +60,9 @@ gapic_generator_python()
 
 gapic_generator_register_toolchains()
 
-_grpc_version = "1.64.2"
+_grpc_version = "1.67.1"
 
-_grpc_sha256 = "8579095a31e280d0c5fcc81ea0a2a0efb2900dbfbac0eb018a961a5be22e076e"
+_grpc_sha256 = "f83aedc91b84d4c396d30b0b2a30f7113c651fe5bc180c8ac08a5f0ff7dcffd2"
 
 http_archive(
     name = "com_github_grpc_grpc",