fix lint issues with mcpgroup

[yrobla]

fix lint problems

[claude]

LGTM — straightforward lint fix updating GroupRef assignments to use the correct *MCPGroupRef struct type.

Extended reasoning...

Overview

Single test file change updating 4 identical GroupRef: mcpGroupName (string) assignments to GroupRef: &mcpv1alpha1.MCPGroupRef{Name: mcpGroupName} (pointer to struct). This aligns the e2e test code with the proper API type definition.

Security risks

None. This is a test file with no production code changes, no auth logic, and no data handling.

Level of scrutiny

Minimal. This is a pure type-correctness fix — the change is mechanical, identical across all 4 sites, and the intent is unambiguous. The fix follows the existing pattern used elsewhere in the codebase.

Other factors

No bugs were reported by the automated system. No prior reviews exist on this PR. The change is confined to a single test file and has no behavioral impact.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.10%. Comparing base (5e1e1d5) to head (63bb595).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4838   +/-   ##
=======================================
  Coverage   69.09%   69.10%           
=======================================
  Files         530      530           
  Lines       55191    55191           
=======================================
+ Hits        38136    38141    +5     
+ Misses      14134    14128    -6     
- Partials     2921     2922    +1     

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