chore: Bump golangci-lint from v2.9.0 to v2.11.4

Aligns CI with Go 1.26.2 contextcheck behavior. v2.9.0 had stale
contextcheck heuristics that flagged existing nolint directives as
unused, while v2.11.4 correctly identifies them as necessary.

Author: bjcoombs

.github/workflows/quality.yml

@@ -83,7 +83,7 @@ jobs:
       - name: Run golangci-lint
         uses: golangci/golangci-lint-action@v9
         with:
-          version: v2.9.0
+          version: v2.11.4
           args: --timeout=5m --config=.golangci.yml
 
   proto-freshness: