Revert "Downgrade ava to 5.x temporarily so we don’t have to change t…

…he Node support yet"

This reverts commit 612aef6.

package.json

@@ -48,7 +48,7 @@
   "devDependencies": {
     "@11ty/eleventy": "^2.0.1",
     "@11ty/eleventy-plugin-webc": "^0.11.1",
-    "ava": "^5.3.1",
+    "ava": "^6.1.1",
     "eslint": "^8.52.0",
     "pixelmatch": "^5.3.0"
   },
@@ -57,11 +57,13 @@
     "files": [
       "./test/*.js"
     ],
-    "ignoredByWatcher": [
-      "./.cache/*",
-      "./img/*",
-      "./test/img/*",
-      "./test/**/generated*"
-    ]
+    "watchMode": {
+      "ignoreChanges": [
+        "./.cache/*",
+        "./img/*",
+        "./test/img/*",
+        "./test/**/generated*"
+      ]
+    }
   }
 }