Bump version to 0.22.3

Summary:
See title.

I've ommitted moving the release notes, as this will be the first time we see this
automated in production.

Test Plan:

ninja
./bitcoind --version | head -n1
./bitcoin-cli --version | head -n1
./qt/bitcoin-qt --version | head -n1
./bitcoin-tx --help | head -n1
./seeder/bitcoin-seeder --version | head -n1
./bitcoin-wallet --help | head -n1

Reviewers: #bitcoin_abc, majcosta

Reviewed By: #bitcoin_abc, majcosta

Differential Revision: https://reviews.bitcoinabc.org/D7445