Change Details

``` Goal of this PR is to replace integer constants with COINBASE_MATURITY but not necessarily in all cases because that would mean to read and fully understand all tests. That's out of my time constraints. Any reports where COINBASE_MATURITY should be used are welcome though! ``` Backport of core#21989.

``` Goal of this PR is to replace integer constants with COINBASE_MATURITY but not necessarily in all cases because that would mean to read and fully understand all tests. That's out of my time constraints. Any reports where COINBASE_MATURITY should be used are welcome though! ``` Backport of [[https://github.com/bitcoin/bitcoin/pull/21989 | core#21989]].

``` Goal of this PR is to replace integer constants with COINBASE_MATURITY but not necessarily in all cases because that would mean to read and fully understand all tests. That's out of my time constraints. Any reports where COINBASE_MATURITY should be used are welcome though! ``` Backport of [[https://github.com/bitcoin/bitcoin/pull/21989 | core#21989]].