feat: release 2.0 as stable

[JoshuaKGoldberg]

PR Checklist

• Addresses an existing open issue: fixes 🛠 Tooling: Switch releases from 2.x-beta to 2.0 stable #1831
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

Switches the release flow back to the default so versions will release without the --tag beta. Hooray, 2.0 stable releasing to users!

🎁

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.46%. Comparing base (33ad458) to head (43c52ff).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1955   +/-   ##
=======================================
  Coverage   95.46%   95.46%           
=======================================
  Files          89       89           
  Lines        3618     3618           
  Branches      210      210           
=======================================
  Hits         3454     3454           
  Misses        164      164           

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