Fixes and small changes
[docs] Update activesupport in werf.io due to vunlerability alert
[docs] Guides/GitHub CI/CD integration: add werf-actions
[dismiss] Return exit code 0 when release is not found
[cli] Add envs support for string array flags
- WERF_SSH_KEY* for --ssh-key
- WERF_SET* for --set
- WERF_SET_STRING* for --set-string
- WERF_VALUES* for --values
- WERF_SECRET_VALUES* for --secret-values