Adapt tests for Windows compatibility

[GagaLP]

This PR is a follow-up to PR #336 and fixes several tests to improve Windows support.

The changes affect task, command, and instruction graph printing tests as well as live_executor starvation/active-time tests:

• The task, command, and instruction graph printing tests compare exact output strings, which depend on the iteration order of std::unordered_map. Since MSVC's standard library uses a different iteration order, these tests fail on Windows even though graph construction is correct. The tests are disabled for now until a more robust graph comparison method is available.
• The live_executor starvation/active-time test tolerance is now platform-dependent, using 20ms on Windows (where the previous tolerance was too strict) and 10ms on other platforms, instead of increasing the tolerance globally.

[github-actions]

Check-perf-impact results: (ae6918621b46271c2f10d6eb978fe95d)

❓ No new benchmark data submitted. ❓
Please re-run the microbenchmarks and include the results if your commit could potentially affect performance.

[PeterTh]

One small change request, looks good otherwise.

[coveralls]

Coverage Report for CI Build 31110403246

Coverage remained the same at 95.067%

Details

• Coverage remained the same as the base build.
• Patch coverage: No coverable lines changed in this PR.
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	7261
Covered Lines:	7156
Line Coverage:	98.55%
Relevant Branches:	3686
Covered Branches:	3251
Branch Coverage:	88.2%
Branches in Coverage %:	Yes
Coverage Strength:	1896846.82 hits per line

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