Add release notes entry for Valkey 9.1.0 GA

[lucasyonge]

Add GA release note entry
Update release version

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.50%. Comparing base (8839f15) to head (6a17391).

Additional details and impacted files

@@            Coverage Diff             @@
##              9.1    #3682      +/-   ##
==========================================
- Coverage   76.78%   76.50%   -0.29%     
==========================================
  Files         163      163              
  Lines       81003    81003              
==========================================
- Hits        62202    61969     -233     
- Misses      18801    19034     +233     

see 25 files with indirect coverage changes

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[sarthakaggarwal97]

nice thanks!

[enjoy-binbin]

Why not handle this in the same PR? I think it makes the most sense to update the version and release notes together.

[lucasyonge]

Why not handle this in the same PR? I think it makes the most sense to update the version and release notes together.

Because I can not update this file in Ran repo

[sarthakaggarwal97]

Because I can not update this file in Ran repo

Can you make a suggestion on Ran's PR and then commit on the PR? I think you will have that write access

[lucasyonge]

@ranshid Hi Ran, how do you think commit this pr related to release-note pr #3635

[ranshid]

@ranshid Hi Ran, how do you think commit this pr related to release-note pr #3635

Since the CVEs where merged when there was NO GA section yet, I created a PR to add them+section. We can cancel these PRs if you want to restruct a PR for release notes GA section.

[dvkashapov]

Should we add note here?

Suggested change

	### Security fixes
	### Security fixes (compared to 9.1.0-rc2)

[madolson]

I'm indifferent to this, typically security fixes are incremental from previous versions. Maybe we just need to document it better? (Alternatively, we could always define fixes compared to X)