[chore] update cmd/builder documentation for docker image release

[jackgopack4]

since open-telemetry/opentelemetry-collector-releases#671 was merged into releases repository, docker images will be published starting with ocb version 0.112.0

This reverts commit 8c4cfe5.

Description

update documentation for cmd/builder to include docker release information

Link to tracking issue

Relates to #5712
Documentation for open-telemetry/opentelemetry-collector-releases#671

Testing

n/a

Documentation

README.md and release.md

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.48%. Comparing base (f2b31d1) to head (50174b3).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11480   +/-   ##
=======================================
  Coverage   91.48%   91.48%           
=======================================
  Files         433      433           
  Lines       23617    23617           
=======================================
  Hits        21607    21607           
  Misses       1642     1642           
  Partials      368      368           

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[evan-bradley]

I can't review the docs for accuracy at this point, but I will be going through the release today with these steps, so I'm approving this with the expectation that I can modify it post-release if any part of the docs need updating.

[jackgopack4]

there was an additional section about an "Update Version" github workflow for the releases repo that is still under discussion (open-telemetry/opentelemetry-collector-releases#684) so I removed those bits with 50174b3 (#11480)