[Exporter.OpenTelemetryProtocol] fix event source throws System.FormatException

[TimothyMothra]

This PR fixes a bug in the PersistentStorageEventSource class.

System.FormatException
  HResult=0x80131537
  Message=Index (zero based) must be greater than or equal to zero and less than the size of the argument list.
  Source=System.Private.CoreLib
  StackTrace:
   at System.ThrowHelper.ThrowFormatIndexOutOfRange()
   at System.Text.ValueStringBuilder.AppendFormatHelper(IFormatProvider provider, String format, ReadOnlySpan`1 args)
   at System.String.FormatHelper(IFormatProvider provider, String format, ReadOnlySpan`1 args)
   at System.String.Format(IFormatProvider provider, String format, Object[] args)
   at Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.OpenTelemetryEventListener.OnEventWritten(EventWrittenEventArgs eventData) in C:\Users\Rohit Ranjan\source\repos\azure-functions-host\src\WebJobs.Script.WebHost\Diagnostics\OpenTelemetryEventListener.cs:line 54
   at System.Diagnostics.Tracing.EventSource.DispatchToAllListeners(EventWrittenEventArgs eventCallbackArgs)

Changes

• fix index in Event attribute.
• Update test class to verify all event source classes in this project.

[cijothomas]

Thanks for fixing this!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.37%. Comparing base (6250307) to head (9ab9e17).
Report is 132 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5451      +/-   ##
==========================================
+ Coverage   83.38%   85.37%   +1.98%     
==========================================
  Files         297      289       -8     
  Lines       12531    12422     -109     
==========================================
+ Hits        10449    10605     +156     
+ Misses       2082     1817     -265     

Flag	Coverage Δ
unittests	?
unittests-Solution-Experimental	85.37% <ø> (?)
unittests-Solution-Stable	85.33% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
.../PersistentStorage/PersistentStorageEventSource.cs	46.00% <ø> (+46.00%)	⬆️

... and 62 files with indirect coverage changes

[reyang]

Another good reason why to move to ILogger #3881.