chore(deps): update dependency @vitest/coverage-c8 to ^0.31.0 (#521)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -78,7 +78,7 @@
     "@types/ws": "^8.5.4",
     "@typescript-eslint/eslint-plugin": "^5.58.0",
     "@typescript-eslint/parser": "^5.58.0",
-    "@vitest/coverage-c8": "^0.30.1",
+    "@vitest/coverage-c8": "^0.31.0",
     "apollo-server-express": "^3.12.0",
     "body-parser": "^1.20.2",
     "doctoc": "^2.2.1",