chore: Update changelog for v12.1.2

[Gudahtt]

Description

Update changelog for v12.1.2

Related issues

N/A

Manual testing steps

N/A

Screenshots/Recordings

N/A

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.87%. Comparing base (5aa83d0) to head (ec18951).

Additional details and impacted files

@@               Coverage Diff                @@
##           Version-v12.1.2   #26886   +/-   ##
================================================
  Coverage            69.87%   69.87%           
================================================
  Files                 1372     1372           
  Lines                48839    48839           
  Branches             13486    13486           
================================================
  Hits                 34122    34122           
  Misses               14717    14717           

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[metamaskbot]

Builds ready [ec18951]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (262 ± 279 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	66	310	111	49	23
		domContentLoaded	10	59	25	13	6
		load	41	2022	262	580	279
		domInteractive	10	59	25	13	6