Append Gi to local home PV and PVC capacity

[bianchi2]

Occasionally it fails with:

Error: quantities must match the regular expression '^([+-]?[0-9.]+)([eEinumkKMGTP]*[-+]?[0-9]*)$'
  with module.jira[0].kubernetes_persistent_volume_claim.local_home[0],
  on modules/products/jira/local_home_storage.tf line 41, in resource "kubernetes_persistent_volume_claim" "local_home":
  41: resource "kubernetes_persistent_volume_claim" "local_home" {