refactor: add future annotations imports (#398)

##### SUMMARY

This adds future annotations imports to benefit from the modern python
typing system.

plugins/modules/primary_ip.py

@@ -4,6 +4,8 @@
 # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
 
+from __future__ import annotations
+
 DOCUMENTATION = """
 ---
 module: primary_ip
@@ -127,8 +129,6 @@ hcloud_primary_ip:
                 mylabel: 123
 """
 
-from typing import Optional
-
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.common.text.converters import to_native
 
@@ -140,7 +140,7 @@ from ..module_utils.vendor.hcloud.primary_ips import BoundPrimaryIP
 class AnsibleHCloudPrimaryIP(AnsibleHCloud):
     represent = "hcloud_primary_ip"
 
-    hcloud_primary_ip: Optional[BoundPrimaryIP] = None
+    hcloud_primary_ip: BoundPrimaryIP | None = None
 
     def _prepare_result(self):
         return {
@@ -236,7 +236,7 @@ class AnsibleHCloudPrimaryIP(AnsibleHCloud):
                     "choices": ["absent", "present"],
                     "default": "present",
                 },
-                **super().base_module_arguments()
+                **super().base_module_arguments(),
             ),
             required_one_of=[["id", "name"]],
             supports_check_mode=True,