How to trigger CodePipeline from GitHub

Hi,

I am trying to get my CDK Stacks deployed automatically via CodePipeline. The pipeline works but it won't get triggered from any commits on my GitHub Repository.

I've created an issue for that: https://github.com/aws/aws-cdk/issues/18656

Basically the code looks like that

    const githubConnection = pipelines.CodePipelineSource.connection(
      "org/repo",
      "main",
      {
        connectionArn: ARN
        triggerOnPush: true,
      }
    );

    const pipeline = new pipelines.CodePipeline(this, "CdkPipeline", {
      synth: new pipelines.ShellStep("Synth", {
        input: githubConnection,
        installCommands: ["yarn install --frozen-lockfile"],
        commands: ["npx cdk synth"],
      }),
    });