fix: move long term tests to repeatable

[ibankov]

Description:
Currently the LongTermSchedules test ported from mono are flaky and cause CI pipeline failures, moving them to Repeatable tests so they no longer rely on timing but instead use virtual time.

Related issue(s):

Fixes #
#17287
Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.05% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (45f108d)	96164	68485	71.22%
Head commit (3e8e67f)	96341 (+177)	68661 (+176)	71.27% (+0.05%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#17313)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.43%. Comparing base (45f108d) to head (3e8e67f).
Report is 19 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #17313      +/-   ##
============================================
+ Coverage     67.36%   67.43%   +0.07%     
- Complexity    22041    22110      +69     
============================================
  Files          2585     2588       +3     
  Lines         96381    96626     +245     
  Branches      10069    10094      +25     
============================================
+ Hits          64923    65160     +237     
- Misses        27744    27745       +1     
- Partials       3714     3721       +7     

see 44 files with indirect coverage changes

[povolev15]

@ibankov TY. LGTM