fix: upgrade @oclif/command from 1.5.19 to 1.5.20

Snyk has created this PR to upgrade @oclif/command from 1.5.19 to 1.5.20.

See this package in NPM:
https://www.npmjs.com/package/@oclif/command

See this project in Snyk:
https://app.snyk.io/org/codingtools/project/69f63852-fccf-4e2e-aeaf-6785477b4de5?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/codingtools/cdt/issues"
   },
   "dependencies": {
-    "@oclif/command": "^1.5.19",
+    "@oclif/command": "^1.5.20",
     "@oclif/config": "^1.14.0",
     "@oclif/plugin-autocomplete": "^0.1.5",
     "@oclif/plugin-commands": "^1.2.3",