SOLR-16396: Replace the GET /config/{component} wildcards with explicit paths

[jaykay12]

https://issues.apache.org/jira/browse/SOLR-16396

Description

Replace the GET /config/{component} wildcards with explicit paths

Solution

Precursor PR for the ongoing initiative: Config V2 Migrations to JAX-RS.
Reference comment: #5022 (comment)

Used Cursor for Code, Testing & code is fully vetted by @jaykay12

Tests

Please describe the tests you've developed or run to confirm this patch implements the feature or solves the problem.

Checklist

Please review the following and check all that apply:

• I have reviewed the guidelines for How to Contribute and my code conforms to the standards described there to the best of my ability.
• I have created a Jira issue and added the issue ID to my pull request title.
• I have given Solr maintainers access to contribute to my PR branch. (optional but recommended, not available for branches on forks living under an organisation)
• I have developed this patch against the main branch.
• I have run ./gradlew check.
• I have added tests for my changes.
• I have added documentation for the Reference Guide
• I have added a changelog entry for my change

[jaykay12]

/no-changelog

[jaykay12]

@epugh
can please trigger workflows on it?
if crave tests pass for this, then this can be independently merged into main.

[epugh]

I love it! Wow, look at all those paths to migrate! Will merge after tests run.

[jaykay12]

@epugh why is changelog workflow failing, even after me getting added the no-changelog label on this PR?

[janhoy]

@epugh why is changelog workflow failing, even after me getting added the no-changelog label on this PR?

Because my workflow code assumed that setting a label from a workflow would then trigger the workflow again, but that is not the case, it only triggers when a human sets the label, not when the workflow does it... So the workflow needs fixing.

[epugh]

Thanks @janhoy for chiming in, and your fix for this....!