Adds Python tabs to d1/worker-api pages.

[dom96]

Summary

Adds Python code examples to the D1 Binding Workers API docs

Test Plan

• Ran through the examples locally and ensured they are functional

[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/docs/d1/	@elithrar, @rozenmd, @vy-ton, @joshthoward, @oxyjun, @harshil1712, @cloudflare/pcx-technical-writing

[github-actions]

Preview URL: https://1260a2cb.preview.developers.cloudflare.com
Preview Branch URL: https://dominik-d1-worker-api-python.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/d1/worker-api/prepared-statements/	https://dominik-d1-worker-api-python.preview.developers.cloudflare.com/d1/worker-api/prepared-statements/
https://developers.cloudflare.com/d1/worker-api/d1-database/	https://dominik-d1-worker-api-python.preview.developers.cloudflare.com/d1/worker-api/d1-database/
https://developers.cloudflare.com/d1/worker-api/return-object/	https://dominik-d1-worker-api-python.preview.developers.cloudflare.com/d1/worker-api/return-object/

[hoodmane]

LGTM, thanks!