build: fix not valid json in coverage

PR-URL: #55179
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>

.nycrc

@@ -4,7 +4,7 @@
     "test/**",
     "tools/**",
     "benchmark/**",
-    "deps/**",
+    "deps/**"
   ],
   "reporter": [
     "html",