Fold installer build and test into CoreCLR jobs

[jkoritzinsky]

Summary

The standalone Installer Build and Test jobs repeat work already performed by the CoreCLR and Libraries build jobs and require an artifact handoff between jobs. Fold that work into the existing producer jobs so each platform builds and submits its installer tests in one place.

• Rename the consolidated jobs to CoreCLR_AllSubsets.
• Add host+packs to the matching CoreCLR/Libraries build subsets.
• Submit installer tests as post-build steps while preserving installer-specific Helix queues and path conditions, including the macOS Arm64 CoreCLR trigger.
• Remove the standalone installer jobs and obsolete artifact uploads.
• Increase the combined job timeout and verify that all six platform/configuration job keys remain unique.

Testing

Parsed the changed YAML files and checked the expanded platform/configuration/suffix keys for duplicates.

Fixes #131615

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[Copilot]

Pull request overview

This PR refactors the runtime.yml CI pipeline to eliminate standalone “Installer Build and Test” jobs by folding installer build + Helix submission into the existing CoreCLR/Libraries producer jobs, reducing cross-job artifact handoff and duplicated work.

Changes:

• Renames the consolidated CoreCLR/Libraries producer jobs to CoreCLR_AllSubsets and adds host+packs to the build subsets.
• Moves installer Helix submission into postBuildSteps with the same path-based conditions (including the macOS arm64-on-coreclr-change trigger).
• Converts eng/pipelines/installer/helix-queues-setup.yml from a job template into a steps template and adds a condition parameter flow into eng/pipelines/installer/helix.yml.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
eng/pipelines/runtime.yml	Folds installer build/test submission into existing CoreCLR/Libraries jobs; removes standalone installer jobs and artifact handoff.
eng/pipelines/installer/helix.yml	Adds a template parameter to gate Helix submission with an additional runtime condition.
eng/pipelines/installer/helix-queues-setup.yml	Refactors installer Helix queue selection into a step template that invokes the installer Helix submission template.

[jkoritzinsky]

/azp run runtime

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[jkoritzinsky]

Agent merge does not work well for our workflow

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

Suppressed comments (1)

eng/pipelines/runtime.yml:330

• Installer Helix submission is currently sequenced after the libraries Helix submission in the same job. If the libraries Send to Helix step fails, the job will typically stop and the installer submission won’t run (previously these were separate jobs, so installer submission could still happen). Consider moving the installer submission step before the libraries submission (and applying the same reordering to the windows_x86 CoreCLR_AllSubsets block) to reduce skipped installer coverage when Helix submission flakes.

                  condition: >-
                    or(
                      eq(variables['librariesContainsChange'], true),
                      eq(variables['isRollingBuild'], true))
              - template: /eng/pipelines/installer/helix-queues-setup.yml

[akoeplinger]

/ba-g unrelated failure: #132030