[chore] Prepare release v1.48.0/v0.142.0

[otelbot]

The following commands were run to prepare this release:

• make chlog-update VERSION=v1.48.0/v0.142.0
• make prepare-release PREVIOUS_VERSION=1[.]47[.]0 RELEASE_CANDIDATE=1.48.0 MODSET=stable
• make prepare-release PREVIOUS_VERSION=0[.]141[.]0 RELEASE_CANDIDATE=0.142.0 MODSET=beta

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.12%. Comparing base (4c0ea5c) to head (76f1de8).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #14291   +/-   ##
=======================================
  Coverage   92.12%   92.12%           
=======================================
  Files         668      668           
  Lines       41529    41529           
=======================================
  Hits        38258    38258           
  Misses       2233     2233           
  Partials     1038     1038           

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