Narwhals v1.6.0

Changes

• patch: Improving typing of stable from_native when 'strict=False' (#875)
• patch: stableify concat function (#869)

✨ Enhancements

• feat: dask namespace concat method (#840)
• feat: support when-then-otherwise for Dask (#868)
• feat: dask expr cast (#821)
• feat: add maybe_get_index (#867)

🐞 Bug fixes

• patch: Fix inconsistent between tying and comments in from_native when 'strict=True' (#865)

📖 Documentation

• docs: fix relative links in contributing.md (#866)
• docs: add codespace steps and fork steps to CONTRIBUTING.md (#851)

📦 Build system

• build: exclude more files (plus some drive-by typing) (#882)

🛠️ Other improvements

• chore: move tpc-h queries to scripts (#880)
• chore: Exclude utils/ from build (#879)
• chore: improve (internal) Dask typing (#874)
• test: unxfail more modin tests (#871)
• test: Unxfail 2 modin tests (#870)

Thank you to all our contributors for making this release possible!
@EdAbati, @FBruzzesi, @MarcoGorelli, @aidoskanapyanov, @anopsy, @benrutter and @luke396