[chore] Prepare release v1.12.0/v0.105.0

[opentelemetrybot]

The following commands were run to prepare this release:

• make chlog-update VERSION=v1.12.0/v0.105.0
• make prepare-release PREVIOUS_VERSION=1.11.0 RELEASE_CANDIDATE=1.12.0 MODSET=stable
• make prepare-release PREVIOUS_VERSION=0.104.0 RELEASE_CANDIDATE=0.105.0 MODSET=beta

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.27%. Comparing base (e8a911b) to head (07ebc8b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10623   +/-   ##
=======================================
  Coverage   92.27%   92.27%           
=======================================
  Files         397      397           
  Lines       18729    18729           
=======================================
  Hits        17283    17283           
  Misses       1086     1086           
  Partials      360      360           

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