Update dependency mocha to v10

Author: renovate-bot

package.json

@@ -53,7 +53,7 @@
     "flow-bin": "^0.178.1",
     "goodeggs-test-helpers": "^8.3.2",
     "leasot": "^13.1.0",
-    "mocha": "6.2.3",
+    "mocha": "10.0.0",
     "nock": "13",
     "nyc": "^15.1.0",
     "typescript": "^4.3.5"