Remove dash in artifact name just in case

Author: KangarooKoala

.github/workflows/pregenerate.yml

@@ -37,5 +37,5 @@ jobs:
         if: ${{ failure() }}
       - uses: actions/upload-artifact@v4
         with:
-          name: wpiprotoplugin-jar
+          name: wpiprotopluginjar
           path: protoplugin/binary/wpiprotoplugin.jar