CI Health Check - Testing master branch

[ChrisRackauckas-Claude]

This is an automated CI health check to verify that the main branch's CI is functioning correctly.

This PR contains only a trivial whitespace change to trigger CI workflows. The purpose is to:

• Verify all CI jobs are passing on the current main branch
• Detect any CI infrastructure issues or test failures
• Ensure the repository is in a healthy state for development

@ChrisRackauckas

If CI passes, this PR will be closed automatically. If CI fails, an issue will be opened with details of the failures.

[ChrisRackauckas-Claude]

CI Health Check Results

CI is BROKEN on the main branch. The health check has confirmed ongoing CI failures.

Summary

The "Julia pre" (pre-release) job has been consistently failing since December 29, 2025. This was introduced by PR #320 which added JET.jl static analysis tests.

Findings

Failed Job: Julia pre - ubuntu-latest - x64
Status: Process completed with exit code 1
Root Cause: JET.jl tests are incompatible with Julia pre-release versions

CI History Analysis

• Last successful CI run: November 24, 2025 (run #19633397854)
• CI broken since: December 29, 2025 (when PR Add JET.jl static analysis tests #320 was merged)
• Affected runs: All CI runs since Dec 29 have the "Julia pre" job failing
• Main branch status: Currently broken (multiple failed runs on main)

Related Issue

This issue has already been identified in issue #321 opened by @ChrisRackauckas: "JET tests should be in a nopre group!"

The fix involves:

1. Moving JET tests to a separate test group that doesn't run on Julia pre-release
2. Removing JET-specific test dependencies from test/Project.toml
3. Following the pattern used in OrdinaryDiffEq.jl

Additional Finding

Minor issue: The codecov action configuration uses deprecated parameter file: instead of files: (line 46 in .github/workflows/ci.yml), though this only produces warnings and doesn't cause failures.

Recommendation

Priority should be given to fixing issue #321 to restore CI health on the main branch.

Closing this health check PR.

@ChrisRackauckas