build(deps): bump astro from 5.18.0 to 6.1.1, fixes #577

[dependabot]

The Issue

Astro v6 is out.

• Fixes Bump Astro to v6 #577

How This PR Solves The Issue

ddev npx @astrojs/upgrade
ddev npm update

Adds /resources/featured-sponsors.svg to Markdown demo (and fixes it for HMR, where it didn't work).

Bumps action withastro/action@v5 => withastro/action@v6

Manual Testing Instructions

Check if local ddev start works and there are no errors in dev tools (F12) and in ddev logs

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Read https://docs.astro.build/en/guides/upgrade-to/v6/ - maybe we need to update more things?

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Compare side by side:

https://ddev.com/ vs https://dependabot-npm-and-yarn-majo-ajay.ddev-com-front-end.pages.dev/

Click different links, etc.

Check if Markdown works fine:

https://ddev.com/blog/markdown-features-demo/ vs https://dependabot-npm-and-yarn-majo-ajay.ddev-com-front-end.pages.dev/blog/markdown-features-demo/

Automated Testing Overview

Related Issue Link(s)

Release/Deployment Notes

[cloudflare-workers-and-pages]

Deploying ddev-com-front-end with    Cloudflare Pages

Latest commit:	a6fa7b1
Status:	✅  Deploy successful!
Preview URL:	https://0033e8d8.ddev-com-front-end.pages.dev
Branch Preview URL:	https://dependabot-npm-and-yarn-majo-ajay.ddev-com-front-end.pages.dev

View logs

[stasadev]

Draft until I deal with the HMR issues:

Hot Module Reloading (HMR) is available at https://ddev.com.ddev.site:4321

$ ddev logs
11:19:01 [vite] Re-optimizing dependencies because lockfile has changed
 astro  v6.1.1 ready in 18487 ms
┃ Local    http://localhost:4321/
┃ Network  http://172.19.0.2:4321/
           http://172.18.0.3:4321/
11:19:01 watching for file changes...
▶ Vite 8.0.3 detected in your project.
  Astro requires Vite 7. Add "overrides": { "vite": "^7" } to your package.json to avoid issues.

• Warn when Vite 8 is detected, and pin Vite 7 when adding the Cloudflare adapter withastro/astro#16062

[stasadev]

I read through https://docs.astro.build/en/guides/upgrade-to/v6/, but not sure if we need to update anything.

[rfay]

Thank you!

[stasadev]

I checked everything I could.

Merging this to clean up auto-generated PRs created by dependabot.