chore(deps): remove unused image-size dependency (#210)

Author: greatislander

package-lock.json

@@ -45,7 +45,6 @@
     "eslint-plugin-markdown": "^3.0.1",
     "eslint-plugin-yml": "^1.14.0",
     "husky": "^9.0.11",
-    "image-size": "^1.1.1",
     "linkedom": "^0.18.2",
     "lint-staged": "^15.2.2",
     "markdownlint-cli2": "^0.17.0",