Add v1.2.0 changelog entry

[ewanharris]

🔧 Changes

Adds the changelog entry for v1.2.0

📚 References

🔬 Testing

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (169152a) 94.80% compared to head (dd51f09) 94.80%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #300   +/-   ##
=======================================
  Coverage   94.80%   94.80%           
=======================================
  Files          46       46           
  Lines        8910     8916    +6     
=======================================
+ Hits         8447     8453    +6     
  Misses        361      361           
  Partials      102      102           

Files	Coverage Δ
management/management_request.go	83.33% <100.00%> (+0.64%)	⬆️

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