feat: add session attributes in _first_open event

[zhu-xiaowei]

• PR title and description conform to Pull Request guidelines.

Description of changes:

1. add session attributes in _first_open event

How did you test these changes?
test by asset session related attributes in the _first_open event.

Documentation update required?

• No
• Yes (Please include a PR link for the documentation update)

General Checklist

• Added Unit Tests

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f74a4c9) 87.00% compared to head (1340021) 86.95%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #47      +/-   ##
============================================
- Coverage     87.00%   86.95%   -0.05%     
+ Complexity      420      419       -1     
============================================
  Files            40       40              
  Lines          1485     1487       +2     
  Branches        129      129              
============================================
+ Hits           1292     1293       +1     
  Misses          121      121              
- Partials         72       73       +1     

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