Update typescript version for DA tests (#444)

Author: sfod

deviceadvisor/tests/mqtt_connect/package.json

@@ -18,7 +18,7 @@
     },
     "devDependencies": {
         "@types/node": "^10.17.50",
-        "typescript": "^3.9.7"
+        "typescript": "^4.7.4"
     },
     "dependencies": {
         "aws-iot-device-sdk-v2": "../../../",

deviceadvisor/tests/mqtt_publish/package.json

@@ -18,7 +18,7 @@
     },
     "devDependencies": {
         "@types/node": "^10.17.50",
-        "typescript": "^3.9.7"
+        "typescript": "^4.7.4"
     },
     "dependencies": {
         "aws-iot-device-sdk-v2": "../../../"

deviceadvisor/tests/mqtt_subscribe/package.json

@@ -18,7 +18,7 @@
     },
     "devDependencies": {
         "@types/node": "^10.17.50",
-        "typescript": "^3.9.7"
+        "typescript": "^4.7.4"
     },
     "dependencies": {
         "aws-iot-device-sdk-v2": "../../../"

deviceadvisor/tests/shadow_update/package.json

@@ -18,7 +18,7 @@
     },
     "devDependencies": {
         "@types/node": "^10.17.50",
-        "typescript": "^3.9.7"
+        "typescript": "^4.7.4"
     },
     "dependencies": {
         "aws-iot-device-sdk-v2": "../../../"