Revert "Update vscode-textmate to latest version"

This reverts commit fa3fb14.

Author: sheetalkamat

package-lock.json

@@ -14,16 +14,16 @@
     "accept": "copyfiles \"tests/generated/*\" tests/baselines"
   },
   "dependencies": {
-    "@types/chai": "latest",
-    "@types/js-yaml": "latest",
-    "@types/mocha": "latest",
-    "@types/node": "latest",
     "chai": "latest",
     "js-yaml": "latest",
     "mocha": "latest",
     "plist": "latest",
     "typescript": "latest",
-    "vscode-textmate": "^4.1.1"
+    "vscode-textmate": "^3",
+    "@types/chai": "latest",
+    "@types/js-yaml": "latest",
+    "@types/mocha": "latest",
+    "@types/node": "latest"
   },
   "devDependencies": {
     "copyfiles": "^2.1.0",