[192] add github-actions with tflint

[pvlbnkl]

Link to main issue: provectus/swiss-army-kube#192

[pvlbnkl]

Locally tflint works, but when terraform init is invoked it results in failure due to versioning.
For example the module below is sourced from swiss-army-kube repo. It needs to be changed to hashicorp or we should update versions in the main SAK repository.

module network {
  source             = "git::https://github.com/provectus/swiss-army-kube.git//modules/network?ref=feature/argocd"
  availability_zones = var.availability_zones
  environment        = var.environment
  project            = var.project
  cluster_name       = var.cluster_name
}