Fission 1.13.1 release

[sanketsudake]

Hi Fission community 👋

We have released Fission 1.13.1 🎉

This release packs a couple of features, please checkout release highlights.

Install Guide: https://docs.fission.io/installation/
Full Changelog: https://github.com/fission/fission/blob/master/CHANGELOG.md

Note

We have marked 1.13.0 as pre-release, please use 1.13.1 for the upgrade from 1.12.0