Update dependency espree to v9 (#84)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package.json

@@ -38,7 +38,7 @@
     "dependencies": {
         "eslint-scope": "^6.0.0",
         "eslint-visitor-keys": "^3.0.0",
-        "espree": "^8.0.0"
+        "espree": "^9.0.0"
     },
     "peerDependencies": {
         "svelte": "^3.37.0"