Setup helm chart releases site

[addyess]

Add Job to build helm charts on pushes to rockcraft branch

[berkayoz]

Great work overall, some small comments.

[addyess]

@berkayoz
is the cr.yaml necessary as well?

[berkayoz]

@addyess
Not unless you want to change the default release name. Especially to not have conflicts if the project name is the same as the helm chart name, so we can have 2 types of releases. One for the project itself binaries etc, and a separate one for helm charts.

[addyess]

@berkayoz cool, i'm ready to test if you are