postgresql_grant replaces ALL with each permission each apply

[josh-green-awaze]

This looks to be a similar issue to #321 but with the ALL permission being splatted out to each permission on apply but not being detected as the same in the following apply.

Resource actions are indicated with the following symbols:
  ~ update in-place

Terraform will perform the following actions:

  # postgresql_default_privileges.x will be updated in-place
  ~ resource "postgresql_default_privileges" "x" {
        id                = "x"
      ~ privileges        = [
          - "DELETE",
          - "INSERT",
          - "MAINTAIN",
          - "REFERENCES",
          - "SELECT",
          - "TRIGGER",
          - "TRUNCATE",
          - "UPDATE",
          + "ALL",
        ]
        # (6 unchanged attributes hidden)
    }

  # postgresql_grant.x will be updated in-place
  ~ resource "postgresql_grant" "x" {
        id                = "x"
      ~ privileges        = [
          - "DELETE",
          - "INSERT",
          - "MAINTAIN",
          - "REFERENCES",
          - "SELECT",
          - "TRIGGER",
          - "TRUNCATE",
          - "UPDATE",
          + "ALL",
        ]
        # (5 unchanged attributes hidden)
    }

Plan: 0 to add, 2 to change, 0 to destroy.

We could change the definition to have all of them listed instead of ALL, but that defeats the point of ALL 😄

This is using v1.26 of the provider

[codezninja]

Same issue here