Fix some binaries to print the versions

[GuptaManan100]

Description

This PR fixes the issue pointed out in #15305.

The fix is just to specify the Version field when we initialize the root command for the binaries.

Related Issue(s)

• Fixes Bug Report: vtexplain --version not working #15305

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
• If this change is to be back-ported to previous releases, a justification is included in the PR description
• Tests were added or are not required
• Did the new or modified tests pass consistently locally and on CI?
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (c1a176c) 67.54% compared to head (4d82516) 67.55%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #15306   +/-   ##
=======================================
  Coverage   67.54%   67.55%           
=======================================
  Files        1561     1561           
  Lines      193371   193371           
=======================================
+ Hits       130617   130633   +16     
+ Misses      62754    62738   -16     

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