[ci] Add automated memory impact analysis for pull requests (#11242)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>

script/ci_helpers.py

@@ -0,0 +1,23 @@
+"""Common helper functions for CI scripts."""
+
+from __future__ import annotations
+
+import os
+
+
+def write_github_output(outputs: dict[str, str | int]) -> None:
+    """Write multiple outputs to GITHUB_OUTPUT or stdout.
+
+    When running in GitHub Actions, writes to the GITHUB_OUTPUT file.
+    When running locally, writes to stdout for debugging.
+
+    Args:
+        outputs: Dictionary of key-value pairs to write
+    """
+    github_output = os.environ.get("GITHUB_OUTPUT")
+    if github_output:
+        with open(github_output, "a", encoding="utf-8") as f:
+            f.writelines(f"{key}={value}\n" for key, value in outputs.items())
+    else:
+        for key, value in outputs.items():
+            print(f"{key}={value}")