chore(deps): bump rustls

[utkarshgupta137]

ureq 2.7 is using rustls 0.21 now, so sentry won't build if both rustls & ureq are enabled.

[codecov]

Codecov Report

Merging #592 (e6ac0fb) into master (b594f83) will increase coverage by 0.00%.
The diff coverage is n/a.

❗ Current head e6ac0fb differs from pull request most recent head 322a7c1. Consider uploading reports for the commit 322a7c1 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #592   +/-   ##
=======================================
  Coverage   70.79%   70.80%           
=======================================
  Files          67       67           
  Lines        6856     6857    +1     
=======================================
+ Hits         4854     4855    +1     
  Misses       2002     2002           

[utkarshgupta137]

@Swatinem Can you do a release, our CIs are broken.

[Swatinem]

Release is triggered: getsentry/publish#2384
It still needs to be approved and will then go out.