Swap `ahash` with `foldhash` #5008

Job	Run time
Build, rustfmt, and python lint	1m 39s
python3.9-x64 macOS-13	1m 6s
python3.9-x64 ubuntu-latest	1m 5s
python3.9-x64 windows-latest	51s
python3.10-x64 macOS-13	1m 7s
python3.10-arm64 macOS-14	1m 6s
python3.10-x64 ubuntu-latest	1m 7s
python3.10-x64 windows-latest	49s
python3.11-x64 macOS-13	1m 5s
python3.11-arm64 macOS-14	1m 7s
python3.11-x64 ubuntu-latest	1m 5s
python3.11-x64 windows-latest	51s
python3.12-x64 macOS-13	1m 2s
python3.12-arm64 macOS-14	1m 8s
python3.12-x64 ubuntu-latest	1m 6s
python3.12-x64 windows-latest	50s
python3.10-x64 ubuntu-latest MSRV	50s
python3.13-dev-x64 ubuntu-latest Beta	1m 7s
python-stubs-${{ matrix.python-version }}	0s
Build Docs	0s
Coverage	0s
	19m 1s

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