Move type dependency to devDependencies

Author: jcreedcmu

extensions/ql-vscode/package.json

@@ -591,7 +591,6 @@
     "format-staged": "lint-staged"
   },
   "dependencies": {
-    "@types/semver": "~7.2.0",
     "child-process-promise": "^2.2.1",
     "classnames": "~2.2.6",
     "fs-extra": "^8.1.0",
@@ -613,6 +612,7 @@
     "zip-a-folder": "~0.0.12"
   },
   "devDependencies": {
+    "@types/semver": "~7.2.0",
     "@types/chai": "^4.1.7",
     "@types/chai-as-promised": "~7.1.2",
     "@types/child-process-promise": "^2.2.1",