Mint: store Y in db (#412)

* storage y db

* for proofs_pending as well

* pending check with Y

* fix pending table

* test_race_pending

* skip race condition test on github

* skip test on github actions

* move test_cli.py -> test_wallet_cli.py

* get full proof from memory

* add domain separation wallet

tests/helpers.py

@@ -30,6 +30,7 @@ WALLET = wallet_class()
 is_fake: bool = WALLET.__class__.__name__ == "FakeWallet"
 is_regtest: bool = not is_fake
 is_deprecated_api_only = settings.debug_mint_only_deprecated
+is_github_actions = os.getenv("GITHUB_ACTIONS") == "true"
 
 docker_lightning_cli = [
     "docker",