[SECURITY] Remove OTLP HTTP support for TLS 1.0 and TLS 1.1, require TLS 1.2

[marcalff]

Fixes #2721

Changes

Please provide a brief description of the changes here.

• Remove support for min/max TLS 1.0 in the OTLP HTTP exporter
• Remove support for min/max TLS 1.1 in the OTLP HTTP exporter
• Require TLS 1.2 or better by default
• This complies with https://www.ietf.org/rfc/rfc8996.html

For significant contributions please make sure you have completed the following items:

• [X] CHANGELOG.md updated for non-trivial changes
• [ ] Unit tests have been added
• [ ] Changes in public API reviewed

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 87.67%. Comparing base (497eaf4) to head (daa187b). Report is 94 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2722      +/-   ##
==========================================
+ Coverage   87.12%   87.67%   +0.56%     
==========================================
  Files         200      190      -10     
  Lines        6109     5855     -254     
==========================================
- Hits         5322     5133     -189     
+ Misses        787      722      -65     

see 108 files with indirect coverage changes