你所说的“Jmeter脚本能够在Github上运行”是什么意思？Github是Git repository的一个（很多）实现，它只存储文件和它们的版本历史，你不能在那里“运行”任何东西。
如果你说的是Github Actions，那么就使用run关键字，把你的命令放在那里。
工作流定义示例如下：

name: CI

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

  workflow_dispatch:

jobs:

  build:

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: setup-jmeter
        run: |
          sudo apt-get update
          sudo apt install curl -y
          sudo apt install -y default-jdk
          sudo curl -O https://archive.apache.org/dist/jmeter/binaries/apache-jmeter-5.3.tgz 
          sudo tar -xvf apache-jmeter-5.3.tgz
          cd $GITHUB_WORKSPACE/apache-jmeter-5.3/lib && sudo curl -O https://repo1.maven.org/maven2/kg/apc/cmdrunner/2.2.1/cmdrunner-2.2.1.jar
          cd $GITHUB_WORKSPACE/apache-jmeter-5.3/lib/ext && sudo curl -O https://repo1.maven.org/maven2/kg/apc/jmeter-plugins-manager/1.6/jmeter-plugins-manager-1.6.jar
          cd $GITHUB_WORKSPACE/apache-jmeter-5.3/lib && sudo java -jar cmdrunner-2.2.1.jar --tool org.jmeterplugins.repository.PluginManagerCMD install-all-except jpgc-hadoop,jpgc-oauth,ulp-jmeter-autocorrelator-plugin,ulp-jmeter-videostreaming-plugin,ulp-jmeter-gwt-plugin,tilln-iso8583

      - name: run-jmeter-test
        run: |
        $GITHUB_WORKSPACE/apache-jmeter-5.3/bin/./jmeter.sh -n -t test.jmx -l result.jtl

另请注意，根据JMeter最佳实践，您应使用最新版本的JMeter，因此请考虑升级到JMeter 5.5或JMeter Downloads页面上提供的任何最新稳定版本