Assign lastEventId only if event was queued for submission

[maciejwalkowiak]

📜 Description

Assign lastEventId only if event has been sent successfully

💡 Motivation and Context

Fixes #1414

💚 How did you test it?

📝 Checklist

• I reviewed the submitted code
• I added tests to verify the changes
• I updated the docs if needed
• No breaking changes

[codecov-commenter]

Codecov Report

Merging #1565 (e52cb68) into main (007cf3d) will increase coverage by 0.01%.
The diff coverage is 92.85%.

@@             Coverage Diff              @@
##               main    #1565      +/-   ##
============================================
+ Coverage     76.02%   76.03%   +0.01%     
- Complexity     1953     1955       +2     
============================================
  Files           192      192              
  Lines          6760     6765       +5     
  Branches        676      675       -1     
============================================
+ Hits           5139     5144       +5     
  Misses         1294     1294              
  Partials        327      327              

Impacted Files	Coverage Δ
...racing/SentrySpanClientHttpRequestInterceptor.java	0.00% <0.00%> (ø)
...java/io/sentry/spring/SentryExceptionResolver.java	100.00% <100.00%> (ø)
sentry/src/main/java/io/sentry/DateUtils.java	92.59% <100.00%> (-0.52%)	⬇️
sentry/src/main/java/io/sentry/Hub.java	73.00% <100.00%> (ø)
sentry/src/main/java/io/sentry/Scope.java	93.27% <100.00%> (+0.06%)	⬆️
...y/src/main/java/io/sentry/protocol/SentrySpan.java	96.29% <100.00%> (+0.64%)	⬆️

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[bruno-garcia]

Better call it 'queue for submission' or similar since it can still be dropped due to date limiting, beforeSend, eventProcessor or some error