Update dependency ava to v6

Dependency update (patch)

Author: renovate[bot]

package.json

@@ -36,7 +36,7 @@
   },
   "homepage": "https://github.com/telemark/tfk-generate-archive-title#readme",
   "devDependencies": {
-    "ava": "5.1.0",
+    "ava": "6.0.0",
     "coveralls": "3.1.1",
     "nyc": "15.1.0",
     "standard": "17.0.0"