deps: update gatsby ignore version (#4866)

Co-authored-by: repo-ranger[bot] <39074581+repo-ranger[bot]@users.noreply.github.com>

.dependabot/config.yml

@@ -47,7 +47,7 @@ update_configs:
           version_requirement: '>=21.0.0'
       - match:
           dependency_name: gatsby
-          version_requirement: '>=2.20.0'
+          version_requirement: '>=2.19.50'
       - match:
           dependency_name: gatsby-plugin-catch-links
           version_requirement: '>=2.2.0'