Upgrade packages to remove dependency on the vulnerable package minimist 0.0.8 (#19455)

* new mocha version

* test fix

* test

* new vscodetestcov version

* use rc1

* use 1.2.1

* remove all 0.0.8 of minimist

* a few more

extensions/agent/package.json

@@ -19,12 +19,12 @@
     "type": "git",
     "url": "https://github.com/Microsoft/azuredatastudio.git"
   },
-	"capabilities": {
+  "capabilities": {
     "virtualWorkspaces": false,
     "untrustedWorkspaces": {
       "supported": true
     }
-	},
+  },
   "extensionDependencies": [
     "Microsoft.mssql"
   ],
@@ -89,14 +89,14 @@
     "vscode-nls": "^4.1.2"
   },
   "devDependencies": {
-    "@types/mocha": "^5.2.5",
+    "@types/mocha": "^7.0.2",
     "@types/node": "^12.11.7",
-    "mocha": "^5.2.0",
+    "mocha": "^7.1.1",
     "mocha-junit-reporter": "^1.17.0",
     "mocha-multi-reporters": "^1.1.7",
     "should": "^13.2.1",
     "typemoq": "^2.1.0",
-    "@microsoft/vscodetestcover": "^1.2.0"
+    "@microsoft/vscodetestcover": "^1.2.1"
   },
   "__metadata": {
     "id": "10",