Hyperdrive: local development docs

[elithrar]

Blocks on https://github.com/cloudflare/workers-sdk/pull/4900

This PR:

• [x] Documents the new HYPERDRIVE_LOCAL_CONNECTION_STRING in the wrangler docs
• [x] Adds a new /hyperdrive/configuration/local-development/ page to document how to test and use Hyperdrive in local dev
• [x] Documents the precedence over localConnectionString in wrangler.toml

[cloudflare-workers-and-pages[bot]]

Deploying cloudflare-docs with    Cloudflare Pages

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[github-actions[bot]]

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/hyperdrive/configuration/local-development/	https://elithrar-patch-13.cloudflare-docs-7ou.pages.dev/hyperdrive/configuration/local-development/
https://developers.cloudflare.com/workers/wrangler/system-environment-variables/	https://elithrar-patch-13.cloudflare-docs-7ou.pages.dev/workers/wrangler/system-environment-variables/

[elithrar]

cc @Maddy-Cloudflare