Add mariner support

[tevoinea]

Summary of the Pull Request

What is this about?

Closes #3372 Closes #3090 Closes #1955

This PR enables us to create a mariner linux pool and run fuzzing tasks on it.

Info on Pull Request

What does this include?

• Updated setup.sh to support mariner
• Updated integration-test.py to test libfuzzer on mariner
• Removed OmsAgentForLinux extension since it's not supported on mariner

Validation Steps Performed

How does someone test & validate?

Ran check-pr with mariner, ubuntu and windows test and it's all green.

[codecov-commenter]

Codecov Report

Merging #3306 (1d18ff2) into main (4e2b3fc) will increase coverage by 0.01%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #3306      +/-   ##
==========================================
+ Coverage   33.91%   33.92%   +0.01%     
==========================================
  Files         297      297              
  Lines       36770    36757      -13     
==========================================
  Hits        12470    12470              
+ Misses      24300    24287      -13     

Files Changed	Coverage Δ
src/ApiService/ApiService/onefuzzlib/Extension.cs	0.00% <0.00%> (ø)