Update Bitcoind to v22.0

[ProofOfKeags]

• [x] Bitcoin Core released v22.0 last September. Note this is NOT '0.22' but '22.0' because Bitcoin Core changed their versioning scheme and we should synchronize with that.
• [x] Look at any new features in the release notes and ingest relevant config options into the new config. The sample config can be found here
• [x] #53

Optional:

• [ ] Start9Labs/operations#23

We cannot publish this eagerly, so make sure that when this is done it doesn't make it to production until the dependent services have their commensurate updates.

Edit: We can push this and btc-rpc-proxy out without affecting anything. Btcpay and LND need to have their dependency requirements updated as well for this to work.

[chrisguida]

candidates for new conf options: blockfilterindex, peerblockfilters, testnet