Fix host volumes with source `./` and add sync host volumes across containers

[zipofar]

[moklidia]

Test 1: adding ./ as a volume
Test 2: check syncing between containers
Need to create an app that would update files and check that they are synced. App in progress.

[NealArw]

1. Deployment with volume ./ failed

https://app.qa-gke.uffizzi.com/projects/368/deployments/2429/containers

version: '3.7'

services:
  web:
    build:
      context: https://github.com/NealArw/hello-world-1#volume-from-the-root
      dockerfile: /Dockerfile
    deploy:
      resources:
        limits:
          memory: 1000M
    volumes:
      - ./

x-uffizzi:
  ingress:
    service: web
    port: 80

  continuous_preview:
    share_to_github: true
    delete_preview_after: 6h
    delete_preview_when_pull_request_is_closed: true
    deploy_preview_when_pull_request_is_opened: true

bash-5.0# k get pod -n deployment-2429
W1031 11:42:57.701268      91 gcp.go:119] WARNING: the gcp auth plugin is deprecated in v1.22+, unavailable in v1.26+; use gcloud instead.
To learn more, consult https://cloud.google.com/blog/products/containers-kubernetes/kubectl-auth-changes-in-gke
No resources found in deployment-2429 namespace.
bash-5.0#