Replace LALRPOP parser with hand-written parser #1209

Job	Run time
windows (x86_64-pc-windows-msvc, x64)	1m 7s
sdist	1m 20s
windows (i686-pc-windows-msvc, x86)	1m 6s
macos-x86_64	1m 8s
windows (aarch64-pc-windows-msvc, x64)	1m 6s
macos-universal	1m 8s
Push Docker image ghcr.io/astral-sh/ruff	1m 12s
linux (x86_64-unknown-linux-gnu)	1m 7s
musllinux (x86_64-unknown-linux-musl)	1m 7s
linux (i686-unknown-linux-gnu)	1m 8s
linux-cross (aarch64-unknown-linux-gnu, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 6s
musllinux (i686-unknown-linux-musl)	1m 7s
musllinux-cross (aarch64-unknown-linux-musl, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 7s
linux-cross (armv7-unknown-linux-gnueabihf, armv7)	1m 6s
musllinux-cross (armv7-unknown-linux-musleabihf, armv7)	1m 7s
linux-cross (s390x-unknown-linux-gnu, s390x)	1m 5s
Validate tag	0s
linux-cross (powerpc64le-unknown-linux-gnu, ppc64le, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 5s
linux-cross (powerpc64-unknown-linux-gnu, ppc64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 4s
Upload to PyPI	1s
Tag release	1s
Publish to GitHub	1s
Update dependents	1s
	20m 20s

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