Document minimum required versions

[markus456]

The libraries that opentelemetry-cpp requires have minimum required versions which are higher than the ones that are natively available on the systems being tested. By listing the exact versions of the libraries, the dependencies are clearly stated which removes the guesswork from build problems.

This contribution is submitted by me as an individual.

Fixes #3560

Changes

Please provide a brief description of the changes here.

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

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

[netlify]

✅ Deploy Preview for opentelemetry-cpp-api-docs canceled.

Name	Link
🔨 Latest commit	5f4b119
🔍 Latest deploy log	https://app.netlify.com/projects/opentelemetry-cpp-api-docs/deploys/6886f348769b970008d15fd1

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.03%. Comparing base (dbd0680) to head (5f4b119).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3562      +/-   ##
==========================================
+ Coverage   90.03%   90.03%   +0.01%     
==========================================
  Files         220      220              
  Lines        7065     7069       +4     
==========================================
+ Hits         6360     6364       +4     
  Misses        705      705              

see 2 files with indirect coverage changes

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[dbarker]

Thanks for the PR @markus456! The changes generally look good. Just a few CI failures on the third_party_minimum file link in the DocFX check and some markdown-lint errors. Please address them and I'll approve.