Enable parallel golangci-lint runners

Add --allow-parallel-runners flag to lint and lint-fix tasks
to allow concurrent linter execution without lock contention.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: JAORMX

Taskfile.yaml

@@ -85,12 +85,12 @@ tasks:
   lint:
     desc: Run linter
     cmds:
-      - golangci-lint run ./...
+      - golangci-lint run --allow-parallel-runners ./...
 
   lint-fix:
     desc: Run linter and fix issues
     cmds:
-      - golangci-lint run --fix ./...
+      - golangci-lint run --allow-parallel-runners --fix ./...
 
   fmt:
     desc: Format code