Add security-advisory and code-scanning-alert event types

[sourikghosh]

Signed-off-by: Sourik Ghosh [email protected]

fixes #2306

What does this PR do ?
security-advisory event type with unit test added
code-scanning-alert event type with unit test added

[sourikghosh]

ping reviewer
@gmlewis

[codecov]

Codecov Report

Merging #2311 (3b9f271) into master (2a15bc2) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2311   +/-   ##
=======================================
  Coverage   97.84%   97.84%           
=======================================
  Files         115      115           
  Lines       10403    10415   +12     
=======================================
+ Hits        10179    10191   +12     
  Misses        156      156           
  Partials       68       68           

Impacted Files	Coverage Δ
github/code-scanning.go	100.00% <ø> (ø)
github/event_types.go	100.00% <ø> (ø)
github/repos_hooks_deliveries.go	92.45% <0.00%> (+2.20%)	⬆️

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[gmlewis]

Thank you, @sourikghosh !
Just a few minor changes, please, then we will need a second LGTM from any other contributor to this repo before merging.

[gmlewis]

This is looking great, @sourikghosh !
Just a couple minor tweaks, please, then we should be ready for another LGTM and merging.

[gmlewis]

Thank you, @sourikghosh !
LGTM.

Awaiting second LGTM from any other contributor to this repo before merging.

[sourikghosh]

could any of you please review this PR
@Parker77 @JordanSussman @raynigon @contributors

[raynigon]

I think it would be nice to have the link to the github docs in the comment.
Besides that, LGTM

[gmlewis]

Thank you, @raynigon !
Merging after tests pass.