chore!: Remove deprecated setUsername method

[MartinSchoeler]

Proposed changes (including videos or screenshots)

Removes the deprecated setUsername method

Issue(s)

ARCH-1754

Steps to test or reproduce

Further comments

[dionisio-bot]

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[changeset-bot]

🦋 Changeset detected

Latest commit: 2657cd9

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 38 packages

Name	Type
@rocket.chat/meteor	Major
@rocket.chat/core-typings	Major
@rocket.chat/rest-typings	Major
@rocket.chat/uikit-playground	Patch
@rocket.chat/api-client	Patch
@rocket.chat/apps	Patch
@rocket.chat/core-services	Patch
@rocket.chat/cron	Patch
@rocket.chat/ddp-client	Patch
@rocket.chat/freeswitch	Patch
@rocket.chat/fuselage-ui-kit	Major
@rocket.chat/gazzodown	Major
@rocket.chat/http-router	Patch
@rocket.chat/livechat	Patch
@rocket.chat/model-typings	Patch
@rocket.chat/ui-avatar	Major
@rocket.chat/ui-client	Major
@rocket.chat/ui-contexts	Major
@rocket.chat/web-ui-registration	Major
@rocket.chat/account-service	Patch
@rocket.chat/authorization-service	Patch
@rocket.chat/ddp-streamer	Patch
@rocket.chat/omnichannel-transcript	Patch
@rocket.chat/presence-service	Patch
@rocket.chat/queue-worker	Patch
@rocket.chat/license	Patch
@rocket.chat/omnichannel-services	Patch
@rocket.chat/pdf-worker	Patch
@rocket.chat/presence	Patch
rocketchat-services	Patch
@rocket.chat/models	Patch
@rocket.chat/network-broker	Patch
@rocket.chat/omni-core-ee	Patch
@rocket.chat/mock-providers	Patch
@rocket.chat/ui-video-conf	Major
@rocket.chat/ui-voip	Major
@rocket.chat/instance-status	Patch
@rocket.chat/omni-core	Patch

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 66.42%. Comparing base (90b2b1e) to head (2657cd9).
⚠️ Report is 6 commits behind head on release-8.0.0.

Additional details and impacted files

@@                Coverage Diff                @@
##           release-8.0.0   #36831      +/-   ##
=================================================
- Coverage          66.43%   66.42%   -0.01%     
=================================================
  Files               3280     3279       -1     
  Lines             109711   109668      -43     
  Branches           20870    20869       -1     
=================================================
- Hits               72882    72843      -39     
+ Misses             34167    34163       -4     
  Partials            2662     2662              

Flag	Coverage Δ
e2e	57.87% <ø> (+0.01%)	⬆️
unit	71.52% <ø> (-0.04%)	⬇️

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