Rename unused parameters to _ to satisfy linter

internal/healthcheck/healthcheck.go

@@ -39,12 +39,12 @@ func New(lc fx.Lifecycle, params Params) (*Healthcheck, error) {
 	}
 
 	lc.Append(fx.Hook{
-		OnStart: func(ctx context.Context) error {
+		OnStart: func(_ context.Context) error {
 			s.StartupTime = time.Now()
 
 			return nil
 		},
-		OnStop: func(ctx context.Context) error {
+		OnStop: func(_ context.Context) error {
 			return nil
 		},
 	})