[dependabot-burner] npm /docs dependencies (astro + octicons)

[github-actions]

Bundle of Dependabot PRs for npm runtime in /docs manifest:

• Bump astro from 5.17.1 to 5.17.2 in /docs #16323 - Bump astro from 5.17.1 to 5.17.2 in /docs
• Bump @primer/octicons and @types/primer__octicons in /docs #16322 - Bump @primer/octicons and @types/primer__octicons in /docs

Action required: Review and merge these PRs together as a bundle.

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