Plan: release Varbase Social Single Sign-On 10.1.1

Release notes snippet

• task: #3607735 Update Drupal core from ~11.3.0 to ~11.4.0 on the 10.1.x branch
• task: #3608370 Remove the LegacyHook shims and procedural files
• fix: #3609191 Remove the dead includes/helpers.inc include