Version 1.20.1

This micro release includes a number of bug fixes, enhancements, and compatibility updates.
Many thanks to the new contributors @spacetimeengineer, @flying-sheep, and @Azaya89, as well as the returning contributors @stanwest, @ahuang11, @maximlt, and @hoxbro

Enhancements:

• Faster spatialpandas unique scalar values (#6470)

Bug fixes:

• IndexError associated with HeatMap (#6438)
• Propagate default_tools (#6451)
• Heatmap with non-sanitized name (#6462)
• Don't have linked axis between source and target for RangeToolLink (#6466)
• Empty constant_keys (#6477)
• Support pandas ExtensionArray ordering (#6481)
• Heatmap aggregation when kdims are in a Pandas multi-index (#6499)
• Support the case of multiple line segments each with one vdim (#6492)

Refactor:

• Remove unused pandas import (#6439)
• Enable RUF005 (#6434)

Compatibility:

• Change param.ObjectSelector to recommended param.Selector (#6444)
• Dask query-planning API support (#6446, #6494, #6503, #6495)
• Scipy 1.15 (#6480)
• cuDF 24.12 (#6475)
• Plotly 6.0 (#6504)
• Ruff 0.8 (#6459)

Documentation:

• Fix wrong variable name (#6442)
• Correct doc of "allow_jedi_completion" (#6485)
• Improve LSP information for extension (#6461)
• Add gallery intro with link to examples.holoviz.org (#6472)

Build:

• Small updates to build infrastructure (#6458)
• Switch PyPI package to trusted build (#6447)

CI:

• Enable conventional commits (#6397, #6457)
• Add COVERAGE_CORE=sysmon for tests (#6465)
• Add test-313 environment (#6508)
• Exclude forks from nightly-lock workflow (#6507)
• Use ruff on all python files (#6498)