Merge branch 'hotfix-data' into 'dev'

.docs/system-services-metadata.md

.docs/system-services-mirror.md

.gitlab-ci.yml

...main/java/at/tuwien/api/database/query/QueryBriefDto.java

.../src/main/java/at/tuwien/api/database/query/QueryDto.java

...service/api/src/main/java/at/tuwien/api/user/UserDto.java

...ities/src/main/java/at/tuwien/entities/database/View.java

...c/main/java/at/tuwien/entities/identifier/Identifier.java

.../querystore/src/main/java/at/tuwien/querystore/Query.java

...ositories/src/main/java/at/tuwien/mapper/QueryMapper.java

...ositories/src/main/java/at/tuwien/mapper/StoreMapper.java

...ositories/src/main/java/at/tuwien/mapper/TableMapper.java

...positories/src/main/java/at/tuwien/mapper/ViewMapper.java

...src/main/java/at/tuwien/endpoints/IdentifierEndpoint.java

...vice/src/main/java/at/tuwien/endpoints/StoreEndpoint.java

...rvice/rest-service/src/main/resources/init/querystore.sql

...est-service/src/main/resources/init/querystore_manual.sql

...service/src/test/java/at/tuwien/config/MariaDbConfig.java

.../java/at/tuwien/endpoints/IdentifierEndpointUnitTest.java

.../test/java/at/tuwien/endpoints/StoreEndpointUnitTest.java