Update java version to functionsjdk8.0.172-win_x64 (#170)

worker.config.json

@@ -8,7 +8,7 @@
     },
     "profiles": {
         "appServiceEnvironment": {
-            "defaultExecutablePath": "../../zulu8.30.0.1-jdk8.0.172-win_x64/bin/java"
+            "defaultExecutablePath": "../../functionsjdk8.0.172-win_x64/bin/java"
         }
     }
 }