Replace some of our use of `polars` #7108

Job	Run time
cpp-paths-filter	4s
Build & Upload rerun_c (Linux x64) / Set Config (linux)	9s
Build & Upload rerun-cli (Linux x64) / Set Config (linux)	3s
Build JS / Build	6m 9s
Build Web / Build Web (wasm32 + wasm-bindgen)	6m 7s
Checks / Python lints (ruff, mypy, …)	5m 44s
Checks / Test Python Docs	26s
Checks / Rust lints (fmt, check, cranky, tests, doc)	10m 8s
Checks / Check if running codegen would produce any changes	2m 17s
Checks / Check Rust web build (wasm32 + wasm-bindgen)	2m 38s
Checks / Lint TOML files	15s
Checks / C++ formatting check	3m 18s
Checks / Misc formatting	23s
Checks / Rerun lints	2m 19s
Checks / Cargo Deny	2m 20s
Checks / Spell Check	5s
Minimum Wheel Build / Set Config (linux)	1s
Update PR Body / Update PR body	1m 56s
Build & Upload rerun-cli (Linux x64) / Build rerun-cli (ubuntu-latest-16-cores)	7m 3s
C++ tests / matrix_prep	5s
Build & Upload rerun_c (Linux x64) / Build rerun_c (ubuntu-latest-16-cores)	3m 5s
C++ tests / C++ build & test - Linux x64	2m 24s
Minimum Wheel Build / Build Wheels (ubuntu-latest-16-cores)	3m 22s
Bundle and upload rerun_cpp_sdk.zip / Bundle and upload rerun_cpp_sdk.zip	7m 58s
Run Notebook / Run notebook	2m 26s
Minimum Wheel Test / Set Config (linux)	2s
Build Examples / Build Examples	1m 52s
Minimum Wheel Test / Test Wheels (ubuntu-latest-16-cores)	9m 59s
Upload Examples / Upload Examples to Google Cloud	17s
Track Sizes / Track Sizes	39s
Upload Web / Upload web build to google cloud (wasm32 + wasm-bindgen)	8s
Save PR Summary / Create HTML summary for PR	32s
	1h 24m 14s

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