Update X-Sentry-Auth header to include correct sdk name and version

[lucas-zimerman]

Closes #1285

[codecov-commenter]

Codecov Report

Merging #1333 (fd40752) into main (a267bef) will not change coverage.
The diff coverage is 100.00%.

❗ Current head fd40752 differs from pull request most recent head b2d4553. Consider uploading reports for the commit b2d4553 to get more accurate results

@@           Coverage Diff           @@
##             main    #1333   +/-   ##
=======================================
  Coverage   82.61%   82.61%           
=======================================
  Files         215      215           
  Lines        7146     7146           
  Branches     1406     1406           
=======================================
  Hits         5904     5904           
  Misses        808      808           
  Partials      434      434           

Impacted Files	Coverage Δ
src/Sentry/Internal/Http/HttpTransport.cs	94.89% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a267bef...b2d4553. Read the comment docs.

[bruno-garcia]

I realize the api diff doesn't belong here but since it brings it to what it currently represents no reason to leave out