Update dependency execa to v9

Author: renovate[bot]

package.json

@@ -115,7 +115,7 @@
     "eslint-plugin-import": "^2.31.0",
     "eslint-plugin-n": "^17.16.2",
     "eslint-plugin-qunit": "^8.1.2",
-    "execa": "^5.1.1",
+    "execa": "^9.0.0",
     "expect-type": "^0.15.0",
     "fs-extra": "^11.1.1",
     "git-repo-info": "^2.1.1",