Use version 21.1 (Enigmatis#296)

Merge pull request Enigmatis#281 from Enigmatis/v9.1

v9.1

Merge pull request Enigmatis#278 from Enigmatis/gql-java-7

Gql java 17.1 - Version 9.0

try publish

[Gradle Release Plugin] - creating tag: 'v8.4'.

Merge pull request Enigmatis#266 from Enigmatis/v8.3

v8.3

Merge pull request Enigmatis#261 from Enigmatis/release-8.2

Release 8.2

Merge pull request Enigmatis#257 from Enigmatis/release-8.1

Release 8.1

Update README.md

Merge pull request Enigmatis#246 from yarinvak/release/v8.0

Release/v8.0