Add the 1.3.0 changelog section

[Zethson]

Dependency bumps omitted, matching the rest of the file.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.62%. Comparing base (61428d5) to head (709f4fe).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1086      +/-   ##
==========================================
+ Coverage   79.47%   79.62%   +0.15%     
==========================================
  Files          53       55       +2     
  Lines        7556     7412     -144     
==========================================
- Hits         6005     5902     -103     
+ Misses       1551     1510      -41     

see 1 file with indirect coverage changes

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