run ./gradlew test not gw-test alias in git-pull-...

bin/git-pull-and-if-origin-changed-run-tests

@@ -16,10 +16,9 @@ while true; do
     git pull origin $BRANCH
 
     # run the command
-    echo "Running gw-test"
-    shopt -s expand_aliases
-    source .aliases
-    gw-test
+    echo "Running ./gradlew test"
+    source .aliases # only variables, aliases are not expanded in scripts
+    ./gradlew test
   else
     echo "no changes detected on the origin branch"
   fi