ledger-tool: Disable os memory reporting on verify command by default

[steviez]

Problem

In most cases, the memory usage of solana-ledger-tool is not needed and adds extra noise to the log ouput.

Summary of Changes

Switch the default behavior from enabled to disabled for memory usage reporting. Note that the argument now differs from solana-validator; however, I think that is fine as again, lots of solana-ledger-tool runs are "one-offs" that we don't care about metrics for.

[codecov]

Codecov Report

Merging #34469 (37d4537) into master (fe7970c) will decrease coverage by 0.1%.
Report is 15 commits behind head on master.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #34469     +/-   ##
=========================================
- Coverage    81.8%    81.8%   -0.1%     
=========================================
  Files         819      819             
  Lines      220925   220925             
=========================================
- Hits       180918   180909      -9     
- Misses      40007    40016      +9