chore(main): release 0.3.0 (#45)
chore(main): release 0.3.0 (#45)

Co-authored-by: github-actions[bot] <17973dcf2e10b67f63417c88ca4c460b2c9439f2@users.noreply.github.com>
GoogleCloudPlatform/alloydb-auth-proxy,GoogleCloudPlatform/alloydb-auth-proxy