update testnet overrides in wallet

[arvidn]

Purpose:

the wallet was not updating constant overrides correctly as some constants have been renamed

[coveralls-official]

Pull Request Test Coverage Report for Build 16177066668

Details

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• 27 unchanged lines in 11 files lost coverage.
• Overall coverage increased (+0.004%) to 91.392%

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Files with Coverage Reduction	New Missed Lines	%
chia/daemon/keychain_proxy.py	1	73.24%
chia/farmer/farmer.py	1	73.28%
chia/full_node/pending_tx_cache.py	1	96.55%
chia/rpc/rpc_server.py	1	88.24%
chia/wallet/util/wallet_sync_utils.py	1	86.07%
chia/daemon/client.py	2	74.16%
chia/server/node_discovery.py	2	82.29%
chia/_tests/core/util/test_lockfile.py	3	88.89%
chia/wallet/wallet_node.py	3	87.53%
chia/server/address_manager.py	5	92.84%

Totals
Change from base Build 16149582872:	0.004%
Covered Lines:	102073
Relevant Lines:	111567

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💛 - Coveralls