chore(deps): bump @metamask/snaps-sdk from 6.6.0 to 6.9.0

[dependabot[bot]]

Bumps @metamask/snaps-sdk from 6.6.0 to 6.9.0.

Commits

• a4e654a Release 73.0.0 (#2836)
• 42cd70b Revert snap_notify changes (#2837)
• b78d274 fix: Pass URLs to PhishingController (#2835)
• 4be3dd3 fix: Make parseMetaMaskUrl platform agnostic (#2834)
• 68761fb Update preinstalled example to make buttons actually work (#2829)
• 8c8dafe Add support for button form property in snaps-simulation (#2830)
• f4890dd Add sm size variant to Heading (#2831)
• 1251f80 Add TypeScript typechecking to snaps-cli (#2783)
• 92bdf72 fix: Ignore Snap insight response if transaction/signature has already been s...
• 9142775 Add min, max and step props to Input (#2821)
• Additional commits viewable in compare view

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[dependabot[bot]]

Looks like @metamask/snaps-sdk is up-to-date now, so this is no longer needed.