v21.5-nosto Release which adds partial support on top of upstream v21.5

Adds support for binding to java.util.Optional parameters.
Binding to Optional parameters allows implementing partial updates.

Binaries are found from Nosto internal repository.

9.1-nosto

What's Changed

• Upgrade nosto from 8.3 to 9.1 upstream version by @manikandan-ravikumar in #4
• Versioning updated from 8.3-nosto to 9.1-nosto

New Contributors

• @manikandan-ravikumar made their first contribution in #4

Full Changelog: 8.3-nosto...9.1-nosto

8.3-nosto

This was uploaded to Sonatype. I created a branch from upstream:master called origin:nosto and from that a feature/* branch