Update pxt-core dependency version to 13.1.17

Author: abchatra

package.json

@@ -32,7 +32,7 @@
     },
     "dependencies": {
         "pxt-common-packages": "14.1.4",
-        "pxt-core": "13.2.1"
+        "pxt-core": "13.1.17"
     },
     "optionalDependencies": {
         "pxt-arcade-sim": "microsoft/pxt-arcade-sim.git#v0.13.0"