Helm charts - Fix Bitnami dependency

[JulianPasquale]

There is an open issue in Bitnami that won't let us build the chart dependencies.

Reproduction steps

1. Go to deploy/charts/bors-ng on the master branch of the bors-ng repo
2. Add the Bitnami repo
   • helm repo add bitnami https://charts.bitnami.com/bitnami
3. Try to build the dependencies
   • helm dependency build

You'll see an error like this:

Test solution

Pre: Run helm repo remove bitnami to avoid name collision.

1. Go to deploy/charts/bors-ng on the fix-helm-dependencies branch of the fork repo.
2. Add the Bitnami repo
   • helm repo add bitnami https://raw.githubusercontent.com/bitnami/charts/e0169502c14943782da50fc1977483fecd6912b5/bitnami
3. Try to build the dependencies
   • helm dependency build

Update completes without errors

I'm not a Helm expert so any feedback is welcome 🙂 .

[notriddle]

bors r+

Okay, that'll do, at least for now.

[bors]

Build succeeded:

• ci
• Community-TC (push)