[C3] Bump gatsby in /packages/create-cloudflare/src/frameworks

Bumps [gatsby](https://github.com/gatsbyjs/gatsby) from 5.12.7 to 5.12.8.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/compare/[email protected]@5.12.8)

---
updated-dependencies:
- dependency-name: gatsby
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

packages/create-cloudflare/src/frameworks/package.json

@@ -17,7 +17,7 @@
 		"create-solid": "0.3.7",
 		"create-svelte": "5.1.1",
 		"create-vue": "3.8.0",
-		"gatsby": "5.12.7",
+		"gatsby": "5.12.8",
 		"nuxi": "3.9.0"
 	},
 	"frameworkCliMap": {