fix(deps): update starters and examples (#32221)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

starters/blog/package-lock.json

@@ -25,15 +25,15 @@
     "gatsby-source-filesystem": "^3.8.0",
     "gatsby-transformer-remark": "^4.5.0",
     "gatsby-transformer-sharp": "^3.8.0",
-    "prismjs": "^1.23.0",
+    "prismjs": "^1.24.1",
     "react": "^17.0.1",
     "react-dom": "^17.0.1",
     "react-helmet": "^6.1.0",
     "typeface-merriweather": "0.0.72",
     "typeface-montserrat": "0.0.75"
   },
   "devDependencies": {
-    "prettier": "2.2.1"
+    "prettier": "2.3.2"
   },
   "homepage": "https://github.com/gatsbyjs/gatsby-starter-blog#readme",
   "keywords": [

starters/blog/package.json

@@ -20,7 +20,7 @@
     "react-helmet": "^6.1.0"
   },
   "devDependencies": {
-    "prettier": "2.2.1"
+    "prettier": "2.3.2"
   },
   "keywords": [
     "gatsby"

starters/default/package-lock.json

@@ -14,6 +14,6 @@
     "gatsby-theme-blog": "^3.0.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
-    "theme-ui": "0.7.3"
+    "theme-ui": "0.10.0"
   }
 }