[BUILD] Error out when building DLL without MSVC

[ThomsonTan]

Fixes #3437

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	83cb234
🔍 Latest deploy log	https://app.netlify.com/projects/opentelemetry-cpp-api-docs/deploys/682f947d6efe3c000899cc09

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.86%. Comparing base (4b6f52a) to head (83cb234).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3438      +/-   ##
==========================================
- Coverage   89.88%   89.86%   -0.01%     
==========================================
  Files         212      212              
  Lines        6941     6941              
==========================================
- Hits         6238     6237       -1     
- Misses        703      704       +1     

see 1 file with indirect coverage changes

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