chore(deps): bump @primer/gatsby-theme-doctocat in /docs (#1907)

Bumps @primer/gatsby-theme-doctocat from 3.2.0 to 3.2.1.

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

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Cole Bemis <[email protected]>

Author: dependabot[bot]