bark: keep the bitcoind password out of config dumps

lucarequested to merge
luca/vul-39-bark-wallet-writes-the-bitcoind-rpc-password-to-debuglog-on into master
  • check or remove this line after you've added a CHANGELOG entry or if your PR doesn't need one (they should go into CHANGELOG/unreleased/)

This MR aims at redacting the secret of bitcoins-rpc-password from debug. It uses a shared for Secret<T> with server and bark.

Edited by luca

Merge request reports