Bump @primer/gatsby-theme-doctocat from 3.2.1 to 3.3.0 in /docs (#772)

Bumps @primer/gatsby-theme-doctocat from 3.2.1 to 3.3.0.

---
updated-dependencies:
- dependency-name: "@primer/gatsby-theme-doctocat"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

docs/package.json

@@ -8,7 +8,7 @@
   },
   "dependencies": {
     "@primer/components": "^30.3.0",
-    "@primer/gatsby-theme-doctocat": "^3.2.1",
+    "@primer/gatsby-theme-doctocat": "^3.3.0",
     "blob-stream": "^0.1.3",
     "copy-to-clipboard": "^3.3.1",
     "downloadjs": "^1.4.7",