perf: use Narwhals expressions (and stable API) #1014

Job	Run time
build-vegafusion-python-linux-64	3m 2s
build-vegafusion-python-linux-64	3m 2s
build-vegafusion-python-osx-64	1s
build-vegafusion-python-osx-64	17m 48s
build-vegafusion-python-osx-arm64	2m 49s
build-vegafusion-python-osx-arm64	2m 49s
build-vegafusion-python-win-64	6m 38s
build-vegafusion-python-win-64	6m 38s
build-vegafusion-python-linux-arm64	3m 31s
build-vegafusion-python-linux-arm64	3m 31s
build-vegafusion-server-linux-64	2m 18s
build-vegafusion-server-linux-64	2m 18s
build-vegafusion-server-linux-arm64	2m 5s
build-vegafusion-server-linux-arm64	2m 5s
build-vegafusion-server-win-64	5m 41s
build-vegafusion-server-win-64	5m 41s
build-vegafusion-wasm	4m 23s
build-vegafusion-wasm	4m 23s
check-rust	3m 44s
check-rust	3m 44s
check-vegafusion-python	10m 1s
check-vegafusion-python	10m 1s
test-rust (ubuntu-20.04)	14m 23s
test-rust (ubuntu-20.04)	14m 23s
build-vegafusion-server-osx-64	4m 4s
build-vegafusion-server-osx-64	4m 4s
build-vegafusion-server-osx-arm64	3m 10s
build-vegafusion-server-osx-arm64	3m 10s
test-rust (windows-2022)	17m 43s
test-rust (windows-2022)	17m 43s
test-rust (macos-14)	15m 16s
test-rust (macos-14)	15m 16s
test-vegafusion-python-osx-arm64	2m 19s
test-vegafusion-python-osx-arm64	54s
test-vegafusion-python-linux-64	26m 49s
test-vegafusion-python-linux-64	26m 49s
test-vegafusion-python-win-64	2m 22s
test-vegafusion-python-win-64	2m 22s
	4h 37m 0s

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