chore(deps): update dependency c8 to v9 (#769)

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

Author: renovate[bot]

package-lock.json

@@ -41,7 +41,7 @@
   },
   "devDependencies": {
     "ava": "6.0.1",
-    "c8": "8.0.1",
+    "c8": "9.0.0",
     "cpy": "10.1.0",
     "cz-conventional-changelog": "3.3.0",
     "fetch-mock": "npm:@gr2m/fetch-mock@9.11.0-pull-request-644.1",