revert devproject changes

DevProject/Packages/manifest.json

   "dependencies": {
     "com.unity.2d.sprite": "1.0.0",
     "com.unity.2d.tilemap": "1.0.0",
-    "com.unity.ads": "3.4.9",
+    "com.unity.ads": "3.4.7",
     "com.unity.analytics": "3.3.5",
     "com.unity.coding": "0.1.0-preview.13",
     "com.unity.collab-proxy": "1.2.16",
     "com.unity.ml-agents.extensions": "file:../../com.unity.ml-agents.extensions",
     "com.unity.multiplayer-hlapi": "1.0.6",
-    "com.unity.package-manager-doctools": "1.7.0-preview",
-    "com.unity.package-validation-suite": "0.19.0-preview",
-    "com.unity.purchasing": "2.1.0",
-    "com.unity.test-framework": "1.1.16",
+    "com.unity.package-manager-doctools": "1.1.1-preview.3",
+    "com.unity.package-validation-suite": "0.14.0-preview",
+    "com.unity.purchasing": "2.0.6",
+    "com.unity.test-framework": "1.1.14",
     "com.unity.test-framework.performance": "2.2.0-preview",
     "com.unity.testtools.codecoverage": "0.2.2-preview",
     "com.unity.textmeshpro": "2.0.1",