Bump mysql2 from 3.9.4 to 3.9.7 (#1042)

Author: dependabot[bot]

package-lock.json

@@ -49,7 +49,7 @@
     "jest": "^29.0.0",
     "lint-staged": "^13.2.1",
     "mongoose": "6.12.0",
-    "mysql2": "3.9.4",
+    "mysql2": "3.9.7",
     "nock": "^13.2.2",
     "npm-run-all": "^4.1.5",
     "prettier": "^2.2.1",