Use correct output path for replicasets in cluster resource collector

[cbuto]

Description, Motivation and Context

This PR updates the cluster resources collector to use the proper output path for replicasets.

While collecting a support-bundle from a cluster with restricted permissions, I came across this error:

Error: failed to run collect and analyze process: create bundle file: failed to stat file: lstat /var/folders/j8/9dmckpr53fsgt2ttnjvc8x1h0000gn/T/supportbundle3684131245/support-bundle-2025-10-28T14_47_51/cluster-resources/statefulsets-errors.json/default.json: not a directory
Error: failed to run collect and analyze process: create bundle file: failed to stat file: lstat /var/folders/j8/9dmckpr53fsgt2ttnjvc8x1h0000gn/T/supportbundle3684131245/support-bundle-2025-10-28T14_47_51/cluster-resources/statefulsets-errors.json/default.json: not a directory

I only ran into it because of permissions issues with collecting statefulsets, so the statefulsets-errors.json file was created.

After building a binary from this branch, I was able to collect a bundle successfully.

Checklist

• New and existing tests pass locally with introduced changes.
• Tests for the changes have been added (for bug fixes / features)
• The commit message(s) are informative and highlight any breaking changes
• Any documentation required has been added/updated. For changes to https://troubleshoot.sh/ create a PR here

Does this PR introduce a breaking change?

• Yes
• No

[cbuto]

cc @NoaheCampbell @bennyyang11 (just grabbed from recent committers 😄)