Fix release bundler version

mkruskal-google · mkruskal-google · commit 97fa1f70abea · 2022-12-27T12:28:29.000-08:00
diff --git a/kokoro/release/ruby/macos/ruby/ruby_build_environment.sh b/kokoro/release/ruby/macos/ruby/ruby_build_environment.sh
@@ -17,7 +17,7 @@ set -e  # rvm commands are very verbose
 time rvm install 2.5.0
 rvm use 2.5.0
 gem install rake-compiler --no-document
-gem install bundler --no-document
+gem install bundler -v 2.3.26 --no-document
 time rvm install 3.1.0
 rvm use 3.1.0
 gem install rake-compiler --no-document
