chore: release 1.4.5

[github-actions]

🤖 I have created a release beep boop

1.4.5 (2026-09-30)

Bug Fixes

• add the payload to the end-effector link instead of overwriting it (#699) (79b169c)
• docs: drop the obsolete cross-repo spatialgeometry wheel fetch (#703) (477b6e3)
• tests: expect forward-slash filename from spatialgeometry >= 1.4.1 (#702) (c070066)
• trajectory: honour non-zero time origins in scalar profiles (#698) (06b8716)
• urdf: report stage, element and line when a URDF/xacro fails to load (848114b)
• urdf: report stage, element and line when URDF/xacro loading fails (#701) (848114b)

Documentation

• add Codacy grade badge to README (0372615)

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Up to standards ✅

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