How can I make GitHub actions give me a jar file not a zip?

I set up github actions for my java repo (a spigot plugin) but it always gives me a zip file with the jar I want inside it, when it should just be giving me the jar. Is there any way to make it just give me a jar?

name: Build plugin

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2

    - name: Set up JDK 1.8
      uses: actions/setup-java@v1
      with:
        java-version: 1.8

    - name: Build with Maven
      run: mvn -B package --file pom.xml

    - name: Archive artifacts
      uses: actions/upload-artifact@v2
      with:
        name: GeyserUpdater
        path: |
          target/*.jar
          !target/original-*.jar