Downgrade deepmerge-ts

not compatible with node 14

Author: gitKrystan

package.json

@@ -50,7 +50,7 @@
     "camelcase": "^6.3.0",
     "codemod-cli": "^3.2.0",
     "cosmiconfig": "^8.1.3",
-    "deepmerge-ts": "^5.1.0",
+    "deepmerge-ts": "^4.3.0",
     "ember-codemods-telemetry-helpers": "^3.0.0",
     "minimatch": "^7.4.6",
     "walk-sync": "^3.0.0",

yarn.lock

@@ -2927,10 +2927,10 @@ deep-is@^0.1.3, deep-is@~0.1.3:
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.4.tgz#a6f2dce612fadd2ef1f519b73551f17e85199831"
   integrity sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ==
 
-deepmerge-ts@^5.1.0:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/deepmerge-ts/-/deepmerge-ts-5.1.0.tgz#c55206cc4c7be2ded89b9c816cf3608884525d7a"
-  integrity sha512-eS8dRJOckyo9maw9Tu5O5RUi/4inFLrnoLkBe3cPfDMx3WZioXtmOew4TXQaxq7Rhl4xjDtR7c6x8nNTxOvbFw==
+deepmerge-ts@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/deepmerge-ts/-/deepmerge-ts-4.3.0.tgz#432aff3cd09f947e36cdb3772a43960bf45327fe"
+  integrity sha512-if3ZYdkD2dClhnXR5reKtG98cwyaRT1NeugQoAPTTfsOpV9kqyeiBF9Qa5RHjemb3KzD5ulqygv6ED3t5j9eJw==
 
 deepmerge@^4.2.2:
   version "4.3.1"