Fix dependabot errors

Updates the package dependencies to avoid dependabot errors.

I updated the `@types/gulp` to avoid some typings errors that were
introduced by incompatible versions of `@types/undertaker`.

Also, I forced resolution on `"glob-parent": "~6.0.0"` that avoids
a vulnerability on earlier versions.

I did a smoke test of features that use glob, as well as running a few
queries. All looks good.

extensions/ql-vscode/package.json

@@ -933,7 +933,7 @@
     "@types/fs-extra": "^9.0.6",
     "@types/glob": "^7.1.1",
     "@types/google-protobuf": "^3.2.7",
-    "@types/gulp": "^4.0.6",
+    "@types/gulp": "^4.0.9",
     "@types/gulp-replace": "0.0.31",
     "@types/gulp-sourcemaps": "0.0.32",
     "@types/js-yaml": "^3.12.5",
@@ -1004,5 +1004,8 @@
       "tsfmt -r",
       "eslint --fix"
     ]
+  },
+  "resolutions": {
+    "glob-parent": "~6.0.0"
   }
 }