[CHIA-2264] Add config constant support to chia db validate

[Quexington]

This change is in response to #19172 and addresses the ability to run db validation on testnet DBs.

[github-actions]

File	Coverage	Missing Lines
chia/cmds/db_validate_func.py	58.3%	lines 21, 23-25, 29

Total	Missing	Coverage
23 lines	5 lines	78%

[coveralls-official]

Pull Request Test Coverage Report for Build 12957767078

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 18 of 23 (78.26%) changed or added relevant lines in 2 files are covered.
• 24 unchanged lines in 10 files lost coverage.
• Overall coverage increased (+0.02%) to 91.534%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
chia/cmds/db_validate_func.py	7	12	58.33%

Files with Coverage Reduction	New Missed Lines	%
chia/_tests/simulation/test_simulation.py	1	96.45%
chia/wallet/util/wallet_sync_utils.py	1	86.14%
chia/plotters/plotters.py	1	90.94%
chia/_tests/core/util/test_file_keyring_synchronization.py	1	96.88%
chia/timelord/timelord.py	2	79.61%
chia/server/node_discovery.py	2	81.5%
chia/consensus/blockchain.py	2	94.14%
chia/wallet/wallet_node.py	3	88.18%
chia/full_node/full_node.py	5	86.54%
chia/plotters/madmax.py	6	44.58%

Totals
Change from base Build 12894248841:	0.02%
Covered Lines:	105351
Relevant Lines:	114919

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💛 - Coveralls