4.1.1

What's Changed

• goci-1073 Upgrading to OLS4 to fix traits issue by @sajo-ebi in #368
• add cohorts and ss to study downloads by @ala-ebi in #369
• fix FileController for cohorts by @ala-ebi in #370
• goci-1127 Bug in Exporting studies by @sajo-ebi in #371
• fix study new_format with cohorts by @ala-ebi in #372

Full Changelog: 4.0.4...4.1.1