Update dependency @octokit/rest to v19

Author: renovate[bot]

package.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "@assemblyscript/loader": "0.20.13",
     "@octokit/core": "3.6.0",
-    "@octokit/rest": "18.12.0",
+    "@octokit/rest": "19.0.4",
     "acme-client": "^5.0.0",
     "as-bind": "0.8.2",
     "assemblyscript": "0.20.13",