Bump image-size in the npm_and_yarn group across 1 directory

Bumps the npm_and_yarn group with 1 update in the / directory: [image-size](https://github.com/image-size/image-size).


Updates `image-size` from 1.1.1 to 1.2.1
- [Release notes](https://github.com/image-size/image-size/releases)
- [Commits](image-size/image-size@v1.1.1...v1.2.1)

---
updated-dependencies:
- dependency-name: image-size
  dependency-type: direct:development
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -57,7 +57,7 @@
 		"esbuild": "^0.23.0",
 		"feed": "^4.2.2",
 		"gray-matter": "^4.0.3",
-		"image-size": "^1.1.1",
+		"image-size": "^1.2.1",
 		"lefthook": "^1.7.5",
 		"mdx-bundler": "^10.0.2",
 		"postcss": "^8",