docs: update porting guide for Ansible 5.3.0 (#76917)

docs/docsite/rst/porting_guides/porting_guide_5.rst

@@ -115,6 +115,26 @@ Networking
 
 No notable changes
 
+Porting Guide for v5.3.0
+========================
+
+Major Changes
+-------------
+
+f5networks.f5_modules
+~~~~~~~~~~~~~~~~~~~~~
+
+- bigip_device_info - pagination logic has also been added to help with api stability.
+- bigip_device_info - the module no longer gathers information from all partitions on device. This change will stabalize the module by gathering resources only from the given partition and prevent the module from gathering way too much information that might result in crashing.
+
+Deprecated Features
+-------------------
+
+community.general
+~~~~~~~~~~~~~~~~~
+
+- mail callback plugin - not specifying ``sender`` is deprecated and will be disallowed in community.general 6.0.0 (https://github.com/ansible-collections/community.general/pull/4140).
+
 Porting Guide for v5.2.0
 ========================