Fix 'missing' dependency

[tevoinea]

Summary of the Pull Request

What is this about?

opentelemetry claims requests ~= 2.0 is not installed with the following message:

DependencyConflict: requested: "requests ~= 2.0" but found: "None"

This is false however, requests is installed and we should leave it up to pip to decide what's installed or not.

[codecov-commenter]

Codecov Report

Merging #3331 (75deae6) into main (85002a6) will decrease coverage by 2.38%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##             main    #3331      +/-   ##
==========================================
- Coverage   34.18%   31.81%   -2.38%     
==========================================
  Files         141      307     +166     
  Lines       17413    37327   +19914     
==========================================
+ Hits         5952    11874    +5922     
- Misses      11461    25453   +13992     

Files Changed	Coverage Δ
...Service/ApiService/onefuzzlib/notifications/Ado.cs	9.58% <0.00%> (ø)
...piService/onefuzzlib/notifications/GithubIssues.cs	0.00% <0.00%> (ø)
...vice/onefuzzlib/notifications/NotificationsBase.cs	73.50% <92.85%> (ø)
...e/onefuzzlib/notifications/JinjaTemplateAdapter.cs	90.86% <100.00%> (ø)

... and 185 files with indirect coverage changes