chore: yoshi-java to maintain synthtool/languages/java.py (#1688)
chore: yoshi-java to maintain synthtool/languages/java.py (#1688)

Co-authored-by: Jeff Ching <21aaffda9718a203d3f6dfde95bf7c5668b929a6@google.com>
googleapis/synthtool,googleapis/synthtool,googleapis/synthtool,googleapis/synthtool,googleapis/synthtool