chore: add sample to main

sample/pg_import/postresql.tf

@@ -0,0 +1,45 @@
+
+data "stackitprivatepreview_postgresflexalpha_flavor" "pgsql_flavor" {
+  project_id    = var.project_id
+  region        = "eu01"
+  cpu           = 2
+  ram           = 4
+  node_type     = "Single"
+  storage_class = "premium-perf2-stackit"
+}
+
+resource "stackitprivatepreview_postgresflexalpha_instance" "import_for_deletion" {
+  project_id      = var.project_id
+  name            = "mshpetest2"
+  backup_schedule = "0 0 * * *"
+  retention_days  = 45
+  flavor_id       = data.stackitprivatepreview_postgresflexalpha_flavor.pgsql_flavor.flavor_id
+  replicas        = 1
+  storage = {
+    # class = "premium-perf2-stackit"
+    performance_class = "premium-perf2-stackit"
+    size              = 10
+  }
+  encryption = {
+    #    key_id = stackit_kms_key.key.key_id
+    #    keyring_id = stackit_kms_keyring.keyring.keyring_id
+    kek_key_id      = var.key_id
+    kek_key_ring_id = var.keyring_id
+    kek_key_version = var.key_version
+    service_account = var.sa_email
+  }
+  network = {
+    acl          = ["0.0.0.0/0", "193.148.160.0/19", "170.85.2.177/32"]
+    access_scope = "PUBLIC"
+  }
+  version = 14
+}
+
+import {
+  to = stackitprivatepreview_postgresflexalpha_instance.import_for_deletion
+  identity = {
+    project_id  = var.project_id
+    region      = "eu01"
+    instance_id = "d52b5d4c-be3f-4c14-a107-330dab99fd2e"
+  }
+}