Update dependency gatsby-plugin-sharp to v4.25.1 [SECURITY]

Author: renovate[bot]

package.json

@@ -50,7 +50,7 @@
     "gatsby-plugin-manifest": "4.15.1",
     "gatsby-plugin-offline": "5.15.1",
     "gatsby-plugin-react-helmet": "5.15.0",
-    "gatsby-plugin-sharp": "4.15.1",
+    "gatsby-plugin-sharp": "4.25.1",
     "gatsby-source-filesystem": "4.15.0",
     "gatsby-source-ghost": "5.0.2",
     "gatsby-transformer-sharp": "4.15.1",