core/config/docs: config enhancements

[jmank88]

https://smartcontract-it.atlassian.net/browse/CRE-361

Requires:

• pkg/config/configtest: move package cfgtest from chainlink/v2 chainlink-common#1103
• pkg/config: config enhancements chainlink-evm#48
• pkg/config/configtest: DocDefaultsOnly ignore arrays of tables chainlink-common#1189
• pkg/solana/config: config enhancements chainlink-solana#1222
• pkg/solana: misc fixes chainlink-solana#1341

[cl-sonarqube-production]

Quality Gate passed

Issues
0 New issues
3 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube

[github-actions]

This PR is stale because it has been open days with no activity.
Remove the stale label, comment, or update this PR to prevent this PR from being closed in days.

[github-actions]

I see you updated files related to core. Please run pnpm changeset in the root directory to add a changeset as well as in the text include at least one of the following tags:

• #added For any new functionality added.
• #breaking_change For any functionality that requires manual action for the node to boot.
• #bugfix For bug fixes.
• #changed For any change to the existing functionality.
• #db_update For any feature that introduces updates to database schema.
• #deprecation_notice For any upcoming deprecation functionality.
• #internal For changesets that need to be excluded from the final changelog.
• #nops For any feature that is NOP facing and needs to be in the official Release Notes for the release.
• #removed For any functionality/config that is removed.
• #updated For any functionality that is updated.
• #wip For any change that is not ready yet and external communication about it should be held off till it is feature complete.

[cl-sonarqube-production]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube