fix(deps): update serenity/js to ^3.31.6

Author: renovate[bot]

package.json

@@ -33,14 +33,14 @@
     "node": "^18.12 || ^20 || ^22"
   },
   "dependencies": {
-    "@serenity-js/assertions": "^3.31.0",
-    "@serenity-js/console-reporter": "^3.31.0",
-    "@serenity-js/core": "^3.31.0",
-    "@serenity-js/mocha": "^3.31.0",
-    "@serenity-js/rest": "^3.31.0",
-    "@serenity-js/serenity-bdd": "^3.31.0",
-    "@serenity-js/web": "^3.31.0",
-    "@serenity-js/webdriverio": "^3.31.0",
+    "@serenity-js/assertions": "^3.31.6",
+    "@serenity-js/console-reporter": "^3.31.6",
+    "@serenity-js/core": "^3.31.6",
+    "@serenity-js/mocha": "^3.31.6",
+    "@serenity-js/rest": "^3.31.6",
+    "@serenity-js/serenity-bdd": "^3.31.6",
+    "@serenity-js/web": "^3.31.6",
+    "@serenity-js/webdriverio": "^3.31.6",
     "@wdio/cli": "^9.4.2",
     "@wdio/globals": "^9.4.2",
     "@wdio/local-runner": "^9.4.2",