Nutshell cleanup wishlist #136

Job	Run time
checks / ruff	7s
checks / mypy	41s
checks / formatting	27s
regtest (3.10, 1.7.1, CoreLightningRestWallet) / regtest	3m 21s
regtest (3.10, 1.7.1, LNbitsWallet) / regtest	3m 10s
regtest (3.10, 1.7.1, LndRestWallet) / regtest	3m 9s
tests (ubuntu-latest, 3.10, 1.7.1, false, true, FakeWallet) / Run (mint-cache-secrets false, mint-only-deprecated true)	2m 25s
tests (ubuntu-latest, 3.10, 1.7.1, false, false, FakeWallet) / Run (mint-cache-secrets false, mint-only-deprecated false)	2m 4s
tests (ubuntu-latest, 3.10, 1.7.1, true, true, FakeWallet) / Run (mint-cache-secrets true, mint-only-deprecated true)	2m 27s
tests (ubuntu-latest, 3.10, 1.7.1, true, false, FakeWallet) / Run (mint-cache-secrets true, mint-only-deprecated false)	1m 59s
	19m 50s

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