Reduced the logger noise from EF when not using Performance Monitoring

[lucas-zimerman]

• Database performance integration if SampleRate is zero
• lowered the logger level if the transaction was not found.

Fixes #1440

[codecov-commenter]

Codecov Report

Merging #1441 (2f6b566) into main (2324af6) will increase coverage by 0.02%.
The diff coverage is 70.00%.

@@            Coverage Diff             @@
##             main    #1441      +/-   ##
==========================================
+ Coverage   84.16%   84.18%   +0.02%     
==========================================
  Files         219      219              
  Lines        7374     7379       +5     
  Branches     1412     1416       +4     
==========================================
+ Hits         6206     6212       +6     
+ Misses        732      729       -3     
- Partials      436      438       +2     

Impacted Files	Coverage Δ
....EntityFramework/SentryQueryPerformanceListener.cs	86.36% <0.00%> (+10.17%)	⬆️
...entry.EntityFramework/DbInterceptionIntegration.cs	88.88% <87.50%> (-11.12%)	⬇️
src/Sentry/Exceptions/Mechanism.cs	82.35% <0.00%> (-2.95%)	⬇️
...Sentry/Extensibility/DiagnosticLoggerExtensions.cs	43.58% <0.00%> (+1.28%)	⬆️

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