[VIRTS-2879] Plugins v2 API Pytests

[bleepbop]

Description

Pytests for v2 Plugins API.

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Verified tests pass for multiple versions of python using tox.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• [NA] I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works

[codecov]

Codecov Report

Merging #2300 (ee72acd) into master (4da3bdc) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2300      +/-   ##
==========================================
+ Coverage   72.57%   72.62%   +0.05%     
==========================================
  Files         109      110       +1     
  Lines        7916     7942      +26     
==========================================
+ Hits         5745     5768      +23     
- Misses       2171     2174       +3     

Impacted Files	Coverage Δ
app/service/file_svc.py	62.44% <0.00%> (-1.41%)	⬇️
app/api/v2/handlers/plugins_api.py	100.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4da3bdc...ee72acd. Read the comment docs.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication