Swap `ahash` with `foldhash` #4982

Job	Run time
Build, rustfmt, and python lint	1m 53s
python3.9-x64 macOS-13	1m 10s
python3.9-x64 ubuntu-latest	1m 10s
python3.9-x64 windows-latest	40s
python3.10-x64 macOS-13	1m 11s
python3.10-arm64 macOS-14	1m 13s
python3.10-x64 ubuntu-latest	1m 10s
python3.10-x64 windows-latest	52s
python3.11-x64 macOS-13	1m 11s
python3.11-arm64 macOS-14	1m 13s
python3.11-x64 ubuntu-latest	1m 10s
python3.11-x64 windows-latest	57s
python3.12-x64 macOS-13	1m 11s
python3.12-arm64 macOS-14	1m 12s
python3.12-x64 ubuntu-latest	1m 11s
python3.12-x64 windows-latest	57s
python3.10-x64 ubuntu-latest MSRV	56s
python3.13-dev-x64 ubuntu-latest Beta	1m 12s
python-stubs-${{ matrix.python-version }}	0s
Coverage	0s
Build Docs	0s
	20m 29s

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