Move Rolling IDL tests from Linux x64 to ARM64

[minggangw]

• Move Rolling/Node 26 IDL testing from x64 to ARM64 using the Ubuntu Resolute nightly tarball.
• Check out the repository before ROS setup to reuse the shared apt action, then install Rolling runtime dependencies with rosdep.
• Select ARM64 Node versions per ROS release: Node 20 for Humble and Jazzy, Node 22 for Kilted, Node 24 for Lyrical, and Node 26 for Rolling.
• Separate ARM64 IDL execution from regular tests and skip unnecessary Electron dependencies and apt interface packages for Rolling.
• Add fail-fast handling to regular ARM64 test commands while preserving bounded retries.
• Remove the x64 IDL matrix entry, test step, and obsolete suite conditions while retaining regular tests, lint, and coverage uploads.

CI coverage

This table describes configured coverage, not CI run results.
Regular tests include Mocha, TypeScript declarations (tsd), and Electron, subject to platform blocklists.

Platform	ROS 2 releases	Node	Validation	Jobs
Linux x64	Humble Hawksbill, Jazzy Jalisco, Kilted Kaiju, Lyrical Luth	24.X	Build, regular tests, lint; Lyrical uploads coverage	4
Linux x64	Rolling Ridley	26.X	Build, regular tests, lint	1
Linux ARM64	Humble Hawksbill, Jazzy Jalisco	20.X	Build and regular tests	2
Linux ARM64	Kilted Kaiju	22.X	Build and regular tests	1
Linux ARM64	Lyrical Luth	24.X	Build and regular tests	1
Linux ARM64	Rolling Ridley	26.X	Build and IDL-mode Mocha	1
Windows x64	Lyrical Luth	22.X	Build and regular tests	1
Windows x64	Humble Hawksbill, Jazzy Jalisco, Kilted Kaiju, Rolling Ridley	22.X	Build only	4
Linux x64 ASan	Lyrical Luth	24.X	Sanitized build and blocklist-filtered Mocha	1

Total on develop remains 16 jobs: five Linux x64, five Linux ARM64, five Windows, and one ASan job.

Fix: #1591

[Copilot]

🟡 Changes recommended

Correct the ARM64 ROS tarball architecture suffix to resolve the installation failure.

Get a fresh assessment by requesting another Copilot review.

Pull request overview

Moves the Rolling ROSIDL test lane from Linux x64 to Linux ARM64.

Changes:

• Removes the Rolling IDL test leg from x64.
• Adds the equivalent ARM64 test lane and ROS setup.
• Updates ARM64 workflow conditions and dependencies.

File summaries

File	Summary
.github/workflows/linux-x64-build-and-test.yml	Removes the x64 Rolling IDL test leg.
.github/workflows/linux-arm64-build-and-test.yml	Adds the ARM64 Rolling IDL test lane; the ROS tarball URL uses linux-arm64 instead of the required linux-aarch64.

Review details

• Files reviewed: 2/2 changed files
• Comments generated: 1
• Review effort level: Lite

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[coveralls]

coverage: 90.956% (+0.001%) from 90.955% — minggangw:move-idl-test-to-arm64 into RobotWebTools:develop

[Copilot]

🟢 Approval recommended

The workflow migration is complete and consistent with the stated CI coverage.

Review details

• Files reviewed: 2/2 changed files
• Comments generated: 0 new
• Review effort level: Balanced