fix(deps): update dependency execa to v8 (#659)

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

Author: renovate[bot]

package-lock.json

@@ -20,7 +20,7 @@
   "dependencies": {
     "@semantic-release/error": "^4.0.0",
     "aggregate-error": "^4.0.1",
-    "execa": "^7.0.0",
+    "execa": "^8.0.0",
     "fs-extra": "^11.0.0",
     "lodash-es": "^4.17.21",
     "nerf-dart": "^1.0.0",