[receiver] Mark module as stable

[mx-psi]

Description

Marks receiver as 1.0. I believe we can do this since this is basically extension+consumer. receiverhelper is not ready yet

Link to tracking issue

Fixes #12513

[mx-psi]

cc @open-telemetry/collector-approvers

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.21%. Comparing base (7ee8a2b) to head (2fbc1d7).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #12560   +/-   ##
=======================================
  Coverage   92.21%   92.21%           
=======================================
  Files         469      469           
  Lines       25368    25368           
=======================================
  Hits        23392    23392           
  Misses       1568     1568           
  Partials      408      408           

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[mx-psi]

I intend to merge this next Wednesday EU morning if I get enough approvals by then

[songy23]

🎉