chore(deps): update dependency @ionic/cli to v6.20.4

Author: renovate[bot]

package.json

@@ -52,7 +52,7 @@
   },
   "devDependencies": {
     "@capacitor/cli": "2.5.0",
-    "@ionic/cli": "6.20.3"
+    "@ionic/cli": "6.20.4"
   },
   "description": "An Ionic project"
 }

yarn.lock

@@ -1241,10 +1241,10 @@
     tslib "^2.0.1"
     write-file-atomic "^3.0.0"
 
-"@ionic/[email protected].3":
-  version "6.20.3"
-  resolved "https://registry.yarnpkg.com/@ionic/cli/-/cli-6.20.3.tgz#9e25e601493565257936e569fc61df472dc931e8"
-  integrity sha512-9hBUcyZaEnVhnh3GMoqffaDaeYNXnJxlfQcDdT5vA/ep81AV7b/JqCrPFpUDe50vAG/5IDh1qOjfBbZfdGbDUg==
+"@ionic/[email protected].4":
+  version "6.20.4"
+  resolved "https://registry.yarnpkg.com/@ionic/cli/-/cli-6.20.4.tgz#34a8303230a806303548e9fba8cfc8287c847f3b"
+  integrity sha512-BFtB1lcemcKJhnhLkCCULekpPFJg1s9j/ofM8Un3CgxdrF83EmO/lhu90qeb8uExp3cx/SNntQg4v39WhFOe6Q==
   dependencies:
     "@ionic/cli-framework" "5.1.3"
     "@ionic/cli-framework-output" "2.2.5"