Bump openzeppelin-docs-utils from `dc7ce30` to `f6b5291` (#2050)

Bumps [openzeppelin-docs-utils](https://github.com/OpenZeppelin/docs-utils) from `dc7ce30` to `f6b5291`.
- [Release notes](https://github.com/OpenZeppelin/docs-utils/releases)
- [Commits](https://github.com/OpenZeppelin/docs-utils/compare/dc7ce3006b6065cc4edebe53896644da5bd7dbec...f6b5291a2e289186376c23d08598cf9e99ed39b4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -31049,8 +31049,8 @@
       }
     },
     "openzeppelin-docs-utils": {
-      "version": "github:OpenZeppelin/docs-utils#9126a4b15d40016f2477ce0c0a3127ca87cd24bf",
-      "from": "github:OpenZeppelin/docs-utils",
+      "version": "github:OpenZeppelin/docs-utils#f6b5291a2e289186376c23d08598cf9e99ed39b4",
+      "from": "github:OpenZeppelin/docs-utils#f6b5291a2e289186376c23d08598cf9e99ed39b4",
       "dev": true,
       "requires": {
         "chalk": "^3.0.0",