[sdk] Regression in KFP 2.11.0: Dynamic CPU-limit placeholders fail to compile (worked in 2.10.0)

[zackgow]

Environment

• KFP SDK version: 2.11.0
• All dependencies version:
  • kfp: 2.11.0
  • kfp-pipeline-spec: 0.6.0
  • kfp-server-api: 2.3.0

Steps to reproduce

#11097 adds support dynamic machine type parameters in pipeline task setters, but this appears broken in 2.11.0.

import kfp
from kfp import dsl


@dsl.component
def cpu_limit() -> str:
    return "4000m"


@dsl.component
def sum_numbers(a: int, b: int) -> int:
    return a + b


@dsl.pipeline
def pipeline():
    sum_numbers_task = sum_numbers(a=1, b=2)
    sum_numbers_task.set_cpu_limit(cpu_limit().output)


kfp.compiler.Compiler().compile(
    pipeline_func=pipeline,
    package_path="test.json",
)

Expected result

A successfully compiled pipeline.

Materials and Reference

Downgrading allows a successful compilation: pip install --upgrade --force-reinstall "kfp==2.10.0"

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