Merge branch 'add-project-license' into 'master'

Add project license

See merge request !17

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.3.1] - 2023-09-15
+### Fixed
+- default license added for old entries
+
 ## [1.3.0] - 2023-09-15
 ### Improvement
 - minerva project can have license attached (#14)

src/main/resources/db/migration/V1.2023.09.14__project_license.sql

-alter table minerva_project add column license varchar not null;
\ No newline at end of file
+alter table minerva_project add column license varchar not null default '';
\ No newline at end of file