Merge pull request oxen-io#1627 from jagerman/hf19-3-stable

Hard spoon 19.3 (stable edition)

Update sqlite static build to latest version

Merge remote-tracking branch 'origin/dev' into stable

Merge pull request oxen-io#1573 from oxen-io/dev

Merge dev to stable

Merge remote-tracking branch 'origin/dev' into stable

Merge branch 'dev' into stable

Remove check for unbound

We don't use it anymore, but the top-level cmake was still looking for
it.

Merge pull request oxen-io#1468 from oxen-io/dev

dev -> stable for 2.2.0 release

Merge remote-tracking branch 'origin/dev' into stable

9.1.2 hotfix -- fix proofs for older nodes with both pubkeys

bt-encoded proofs have a bug for nodes with different legacy/ed25519
pubkeys that isn't easily solvable (it needs a fix on *both* sender and
receiver ends).  That fix is in here (in uptime_proof.cpp) but that
isn't enough to solve it immediately.

This works around the issue by submitting old-style proofs if we are a
node with different legacy/ed25519 pubkeys.