fix(core): plugins are always reinstalled

[neriousy]

What does this PR do?

Plugins @latest were always reinstalled even if their version was cached

How did you verify your code works?

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

The search results show that PR #9675 (the current PR) appears in the results, but no other open or merged PRs with the exact same title exist. The other results are related to plugin management and fixes, but they appear to be distinct issues:

• PR fix(disposal): Complete Instance disposal chain for plugins and caches #9149 - "fix(disposal): Complete Instance disposal chain for plugins and caches" - This involves plugin lifecycle but is specifically about disposal chains
• PR feat(plugin)!: migrate plugin system to SDK v2 #7639 - "feat(plugin)!: migrate plugin system to SDK v2" - This is a feature migration, not about reinstallation
• PR fix: improve error messages for plugin installation failures #8319 - "fix: improve error messages for plugin installation failures" - Addresses installation errors, not unnecessary reinstallation

No duplicate PRs found

[neriousy]

tests failing cause new config.get() does some more blocking for the dependency installation - will figure it out tommorow