Multiple things

Remove ArgoCD and Helm dependencies, add everything unnecessary to .dockerignore, add support for DB authentication in Payphone's CLI, make Scylla be fully managed by Ansible, add Payphone deployment ansible file

k8s/ansible/argo-cd/02-scylla-app.yml

@@ -1,23 +0,0 @@
-apiVersion: v1
-kind: Namespace
-metadata:
-  name: scylla
----
-apiVersion: argoproj.io/v1alpha1
-kind: Application
-metadata:
-  name: scylla
-  namespace: argocd
-spec:
-  project: default
-  source:
-    repoURL: 'https://git.nyeki.dev/payphone/payphone.git'
-    targetRevision: rewrite
-    path: k8s/argo-cd/scylla
-  destination:
-    server: 'https://kubernetes.default.svc'
-    namespace: scylla
-  syncPolicy:
-    automated:
-      prune: true
-      selfHeal: true