chore(deps): bump image-size from 1.1.1 to 1.2.1 in /docs (#812)

Bumps [image-size](https://github.com/image-size/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-version: 1.2.1
  dependency-type: indirect
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/yarn.lock

@@ -9308,13 +9308,13 @@ __metadata:
   linkType: hard
 
 "image-size@npm:^1.0.2":
-  version: 1.1.1
-  resolution: "image-size@npm:1.1.1"
+  version: 1.2.1
+  resolution: "image-size@npm:1.2.1"
   dependencies:
     queue: "npm:6.0.2"
   bin:
     image-size: bin/image-size.js
-  checksum: 10c0/2660470096d12be82195f7e80fe03274689fbd14184afb78eaf66ade7cd06352518325814f88af4bde4b26647889fe49e573129f6e7ba8f5ff5b85cc7f559000
+  checksum: 10c0/f8b3c19d4476513f1d7e55c3e6db80997b315444743e2040d545cbcaee59be03d2eb40c46be949a8372697b7003fdb0c04925d704390a7f606bc8181e25c0ed4
   languageName: node
   linkType: hard