Pivot to foldhash for hash implementation in IndexMap #518

Job	Run time
Configure	3s
Integration Neko	6m 55s
Lint / Lint	3m 20s
Documentation / Docs	12m 1s
QPY / Test	8m 38s
Unit Rust / ubuntu-latest	8m 7s
Unit Python / Windows / Python oldest / windows-latest - Python 3.10	25m 0s
Image / Test-images-3.10	4m 2s
Unit Python / Linux / Python newest - ubuntu-24.04-arm / ubuntu-24.04-arm - Python 3.14	9m 7s
Unit Python / macOS / Python newest / macos-15 - Python 3.14	11m 20s
Miri / Miri	8m 47s
Unit Python / Linux / Python oldest - ubuntu-24.04-arm / ubuntu-24.04-arm - Python 3.10	14m 19s
Unit C / ubuntu-latest / ubuntu-latest	2m 43s
Unit Python / macOS / Python oldest / macos-15 - Python 3.10	11m 11s
Unit Python / Linux / Python newest - ubuntu-latest / ubuntu-latest - Python 3.14	11m 27s
Unit Python / Linux / Python oldest - ubuntu-latest / ubuntu-latest - Python 3.10	18m 53s
Unit C / ubuntu-24.04-arm / ubuntu-24.04-arm	3m 23s
Unit Python / Windows / Python newest / windows-latest - Python 3.14	23m 17s
Unit C / macos-15 / macos-15	3m 17s
Unit C / windows-latest / windows-latest	5m 1s
Finalize	4s
	3h 10m 55s

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