feat(pipelines) UpdatePipeline - SelfMutate action injects stack name instead of the stack id

[rehos]

I ran into an issue where the UpdatePipeline - SelfMutate action failed. In my situation the Stack Id is different from the Stack Name. Looking at the generated CodeBuild commands I saw that it injected the stackName instead of the stackId. I believe the CDK cli requires a stack id to select the correct stack.

This line is wrong I think:
See

aws-cdk/packages/@aws-cdk/pipelines/lib/codepipeline/codepipeline.ts

Line 619 in 3382e99

const pipelineStackIdentifier = pipelineStack.node.path ?? pipelineStack.stackName;

aws-cdk/packages/@aws-cdk/pipelines/lib/codepipeline/codepipeline.ts

Line 628 in 3382e99

`cdk -a ${toPosixPath(embeddedAsmPath(this.pipeline))} deploy ${pipelineStackIdentifier} --require-approval=never --verbose`,