Fixed the gradle datagen command

Author: MikiP98

.github/workflows/build.yml

@@ -22,7 +22,7 @@ jobs:
       - name: make gradle wrapper executable
         run: chmod +x ./gradlew
       - name: datagen
-        run: ./gradlew datagen
+        run: ./gradlew runDatagen
       - name: build
         run: ./gradlew build
       - name: capture build artifacts