perf: enable compaction during reconnects

[OlegMazurov]

Description:
Enable compaction for the learner's data source copy.

Related issue(s):

Fixes #17065

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
✅ +0.03% (target: -1.00%)	✅ 100.00%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (1128c74)	95476	64916	67.99%
Head commit (51997f3)	95665 (+189)	65070 (+154)	68.02% (+0.03%)

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 (#17129)	1	1	100.00%

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 64.26%. Comparing base (1128c74) to head (51997f3).
Report is 15 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #17129      +/-   ##
=============================================
+ Coverage      64.25%   64.26%   +0.01%     
- Complexity     20819    20882      +63     
=============================================
  Files           2547     2549       +2     
  Lines          95713    95985     +272     
  Branches       10014    10044      +30     
=============================================
+ Hits           61498    61683     +185     
- Misses         30606    30673      +67     
- Partials        3609     3629      +20     

Files with missing lines	Coverage Δ
...b/src/main/java/com/swirlds/merkledb/MerkleDb.java	75.00% <100.00%> (ø)
...ds/virtualmap/internal/merkle/VirtualRootNode.java	57.53% <ø> (-0.14%)	⬇️

... and 94 files with indirect coverage changes