chore(deps-dev): bump @snapshot-labs/eslint-config

Bumps @snapshot-labs/eslint-config from 0.1.0-beta.18 to 0.1.0-beta.21.

---
updated-dependencies:
- dependency-name: "@snapshot-labs/eslint-config"
  dependency-version: 0.1.0-beta.21
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -39,7 +39,7 @@
     ]
   },
   "devDependencies": {
-    "@snapshot-labs/eslint-config": "^0.1.0-beta.18",
+    "@snapshot-labs/eslint-config": "^0.1.0-beta.21",
     "@snapshot-labs/prettier-config": "^0.1.0-beta.18",
     "@types/express": "^4.17.11",
     "@types/jest": "^29.5.3",