Pause scheduled runs for runtime-coreclr gc-standalone pipeline

[Copilot]

main PR N/A

Description

Pause the nightly scheduled runs of the runtime-coreclr gc-standalone pipeline while the underlying issue is being investigated. The pipeline definition remains intact for manual execution and can be re-enabled with a small revert.

• Schedule
  • Comment out the schedules: cron block in /eng/pipelines/coreclr/gc-standalone.yml.
• Operational note
  • Add an inline note explaining that the pause is temporary and that re-enabling only requires uncommenting the schedule.

trigger: none

# Scheduled runs are paused while we root-cause an ongoing issue.
# Do not remove this pipeline; re-enable by uncommenting the schedule below.
# schedules:
# - cron: "0 5 * * *"
#   ...

Customer Impact

Avoids continued unattended nightly runs for a pipeline that is currently not actionable, reducing noise and unnecessary CI consumption while investigation is in progress.

Regression

No. This is an intentional temporary operational pause.

Testing

Not applicable. This change only updates pipeline scheduling metadata.

Risk

Low. The change does not alter build or test logic; it only disables the automatic schedule. Manual runs remain available, and rollback is straightforward.

Package authoring no longer needed in .NET 9

IMPORTANT: Starting with .NET 9, you no longer need to edit a NuGet package's csproj to enable building and bump the version.
Keep in mind that we still need package authoring in .NET 8 and older versions.

[azure-pipelines]

Azure Pipelines:
Successfully started running 3 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

[azure-pipelines]

Azure Pipelines:
Successfully started running 4 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

[Copilot]

Pull request overview

This PR disables the nightly scheduled runs for the CoreCLR gc-standalone Azure Pipelines definition by commenting out the schedules: block, leaving the pipeline otherwise unchanged and still runnable manually.

Changes:

• Commented out the schedules: cron configuration to pause automatic runs.
• Added an inline comment explaining the pause is temporary and how to re-enable scheduling.