0.21.0
 * Unlock the keyring before getting secret attributes [!105]
 * file-backend: avoid deadlock when portal op is canceled [!118, !120]
 * Properly chain-up GTasks around GDBusProxy::init_async [!106]
 * Fix nullable in secret_collection_for_alias_* [!110]
 * Fix finish function for searchv [!112]
 * secret-paths: Fix a little memory leak [!109]
 * Stop using GSlice [!116]
 * docs: port to gi-docgen [!101]
 * docs: fix example in usage docs [!117]
 * Several CI fixes [!111, !114]
 * Updated translations