fix: replace unused parameters with underscores (revive)

- Replace unused function parameters with _ in test files
- Affects version_test.go, debug_test.go, and pgpunlock_test.go

internal/secret/pgpunlock_test.go

@@ -28,7 +28,7 @@ func init() {
 }
 
 // setupNonInteractiveGPG creates a custom GPG environment for testing
-func setupNonInteractiveGPG(t *testing.T, tempDir, passphrase, gnupgHomeDir string) {
+func setupNonInteractiveGPG(t *testing.T, _, passphrase, gnupgHomeDir string) {
 	// Create GPG config file for non-interactive operation
 	gpgConfPath := filepath.Join(gnupgHomeDir, "gpg.conf")
 	gpgConfContent := `batch