feat: send one sample event, response per label set in the configured duration

[vamsikrishnakandi]

Description

Send one sample event or response per LabelSet to reporting within the configured duration.

• Generate a hash for each report and store it in badger db.
• If the hash is already present in the db, do not resend the sample event or response. If the hash is not present, send the sample event/response.
• The hash stored in the db expires after the configured TTL.

Linear Ticket

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Attention: Patch coverage is 66.45570% with 53 lines in your changes missing coverage. Please review.

Project coverage is 73.29%. Comparing base (22a89e8) to head (bc0acdd).

Files with missing lines	Patch %	Lines
enterprise/reporting/reporting.go	16.66%	27 Missing and 3 partials ⚠️
enterprise/reporting/event_sampler.go	75.26%	19 Missing and 4 partials ⚠️

Additional details and impacted files

@@                    Coverage Diff                     @@
##           feat.reports-bactching    #5298      +/-   ##
==========================================================
+ Coverage                   73.19%   73.29%   +0.09%     
==========================================================
  Files                         424      426       +2     
  Lines                       59949    60107     +158     
==========================================================
+ Hits                        43879    44054     +175     
+ Misses                      13606    13591      -15     
+ Partials                     2464     2462       -2     

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