feat: add support for kinesis event startingPositionTimestamp

[overbit]

Closes: #11148

[codecov]

Codecov Report

Base: 85.79% // Head: 85.79% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (5422225) compared to base (d2b6926).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11483   +/-   ##
=======================================
  Coverage   85.79%   85.79%           
=======================================
  Files         314      314           
  Lines       13259    13264    +5     
=======================================
+ Hits        11375    11380    +5     
  Misses       1884     1884           

Impacted Files	Coverage Δ
lib/plugins/aws/package/compile/events/stream.js	98.30% <100.00%> (+0.07%)	⬆️

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[medikoo]

Thank you!

[medikoo]

Thank you!