[PR #11055/a9a4f890 backport][stable-12] remove required=false from docs (#11065)

remove required=false from docs (#11055)

(cherry picked from commit a9a4f89033)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

plugins/modules/packet_ip_subnet.py

@@ -42,13 +42,11 @@ options:
   hostname:
     description:
       - A hostname of a device to/from which to assign/remove a subnet.
-    required: false
     type: str
 
   device_id:
     description:
       - UUID of a device to/from which to assign/remove a subnet.
-    required: false
     type: str
 
   project_id: