perf: log4j overhead for inactive markers is too high

[OlegMazurov]

Description:
Downgrade some logs to DEBUG to reduce overhead.

Related issue(s):

Fixes #16914

Notes for reviewer:

Checklist

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

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 74 lines in your changes missing coverage. Please review.

Project coverage is 63.87%. Comparing base (faee49d) to head (445af7a).
Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
...swirlds/platform/gossip/shadowgraph/SyncUtils.java	0.00%	55 Missing ⚠️
...m/swirlds/platform/consensus/CandidateWitness.java	0.00%	6 Missing and 1 partial ⚠️
.../main/java/com/swirlds/platform/ConsensusImpl.java	0.00%	5 Missing and 1 partial ⚠️
...com/swirlds/platform/consensus/RoundElections.java	0.00%	3 Missing and 1 partial ⚠️
...rm/gossip/shadowgraph/ShadowgraphSynchronizer.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #16921      +/-   ##
=============================================
- Coverage      63.89%   63.87%   -0.03%     
  Complexity     20603    20603              
=============================================
  Files           2541     2541              
  Lines          95300    95314      +14     
  Branches        9957     9967      +10     
=============================================
- Hits           60894    60882      -12     
- Misses         30803    30827      +24     
- Partials        3603     3605       +2     

Files with missing lines	Coverage Δ
...rm/gossip/shadowgraph/ShadowgraphSynchronizer.java	0.81% <0.00%> (ø)
...com/swirlds/platform/consensus/RoundElections.java	69.09% <0.00%> (-6.84%)	⬇️
.../main/java/com/swirlds/platform/ConsensusImpl.java	75.75% <0.00%> (-1.45%)	⬇️
...m/swirlds/platform/consensus/CandidateWitness.java	69.23% <0.00%> (-26.77%)	⬇️
...swirlds/platform/gossip/shadowgraph/SyncUtils.java	0.00% <0.00%> (ø)

... and 9 files with indirect coverage changes

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ -0.02% (target: -1.00%)	✅ 4.05%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (faee49d)	98065	64306	65.57%
Head commit (445af7a)	98079 (+14)	64296 (-10)	65.56% (-0.02%)

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 (#16921)	74	3	4.05%

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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[alex-kuzmin-hg]

Approved - looks good