chore: move more release logic to gha

[louis-bompart]

• Trigger Deployment Pipeline from GitHub Actions
• Move "prod stage" into GitHub Actions, under an enviro that requires a rubberstamp
  • Soon, the rubberstamp will be done automatically when the remains of the TeamJenkins phase runs.
  • Eventually, something something ootb from the dep pipeline
  • For now, manual rubberstamp.

Rationale: Jenkins is a PITA, running stuff in GHA should help.

What's going on:

sequenceDiagram
   box blue Public network
   participant SFDC
   participant NPM
   participant GitHub-public
   end
   box purple VPC network
   participant GitHub-coveo
   participant DepPipeline
   participant AWS
   participant TeamJenkins
   end
   GitHub-public->>+NPM: Publish package on beta tag
   GitHub-public->>+SFDC: Publish package
   GitHub-public->>+GitHub-coveo: Continue GitHub workflow on Coveo Hosted Runner
   GitHub-coveo-)DepPipeline: Trigger Deployment Pipeline
   GitHub-coveo->>+GitHub-public: Continue GitHub workflow on GitHub Hosted runner
   activate GitHub-public
   DepPipeline->>DepPipeline: Do the usual checks
   DepPipeline->>+AWS: Deploy files to S3
   DepPipeline->>+TeamJenkins: Dispatch Jenkins Job
   DepPipeline->>+AWS: Invalidate CloudFront Cache
   Note right of GitHub-public: Wait for ✅ 
   deactivate GitHub-public
   TeamJenkins->>+GitHub-public: Approve Production GitHub Environment usage
   GitHub-public->>+NPM: Promote package to latest
   GitHub-public->>+SFDC: Promote package to latest

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https://coveord.atlassian.net/browse/KIT-3025

[github-actions]

Pull Request Report

PR Title

✅ Title follows the conventional commit spec.

Bundle Size

File	Old (kb)	New (kb)	Change (%)
case-assist	224.6	224.6	0
commerce	335.6	335.6	0
search	406.4	406.4	0
insight	342.9	342.9	0
product-listing	340.7	340.7	0
product-recommendation	191.9	191.9	0
recommendation	239	239	0
ssr	377.7	377.7	0

[olamothe]

Mostly question from me, I wanna make sure I understand the process correctly.

Also, there is a release-process.md documentation, which maybe we could buff up a bit to go a bit more into details how it all works on a technical level ?

[louis-bompart]

add diagram in release-process.md