Updated node version to 20. Updated versions of dependencies for compat

Author: ShilpiR

action.yml

@@ -36,5 +36,5 @@ branding:
   icon: 'webapp.svg'
   color: 'blue'
 runs:
-  using: 'node16'
+  using: 'node20'
   main: 'lib/main.js'

package.json

@@ -23,12 +23,12 @@
   },
   "homepage": "https://github.com/Azure/webapps-deploy#readme",
   "devDependencies": {
-    "@types/jest": "^25.1.4",
-    "@types/node": "^13.1.7",
-    "jest": "^25.1.0",
-    "ts-jest": "^25.2.1",
-    "ts-node": "^8.8.1",
-    "typescript": "^3.7.4"
+    "@types/jest": "^29.5.12",
+    "@types/node": "^20.12.2",
+    "jest": "29.7.0",
+    "ts-jest": "29.1.2",
+    "ts-node": "^10.9.1",
+    "typescript": "^5.4.3"
   },
   "dependencies": {
     "@actions/core": "^1.10.0",