Update dependency acme-client to v5

Author: renovate[bot]

package.json

@@ -22,7 +22,7 @@
     "@assemblyscript/loader": "0.20.13",
     "@octokit/core": "3.6.0",
     "@octokit/rest": "18.12.0",
-    "acme-client": "^2.0.1",
+    "acme-client": "^5.0.0",
     "as-bind": "0.8.2",
     "assemblyscript": "0.20.13",
     "dotenv": "16.0.1",