chore(deps): update dependency gatsby-plugin-sharp to v4 [security]

Author: renovate[bot]

package.json

@@ -20,7 +20,7 @@
     "gatsby-plugin-netlify-cms": "5.15.0",
     "gatsby-plugin-offline": "4.15.0",
     "gatsby-plugin-react-helmet": "4.15.0",
-    "gatsby-plugin-sharp": "3.15.0",
+    "gatsby-plugin-sharp": "4.25.1",
     "gatsby-plugin-sitemap": "4.11.0",
     "gatsby-plugin-styled-components": "4.15.0",
     "gatsby-plugin-typography": "3.15.0",