Fix all ACI examples to use delegate_to (#43439)

This is to avoid users connecting to the APIC using SSH, which is likely
to fail. In the ACI documentation (linked from every module) we go into
more details on how people are supposed to work with the modules..

lib/ansible/modules/network/aci/aci_aep.py

@@ -60,6 +60,7 @@ EXAMPLES = r'''
     aep: ACI-AEP
     description: default
     state: present
+  delegate_to: localhost
 
 - name: Remove an existing AEP
   aci_aep:
@@ -68,6 +69,7 @@ EXAMPLES = r'''
     password: SomeSecretPassword
     aep: ACI-AEP
     state: absent
+  delegate_to: localhost
 
 - name: Query all AEPs
   aci_aep:
@@ -75,6 +77,8 @@ EXAMPLES = r'''
     username: admin
     password: SomeSecretPassword
     state: query
+  delegate_to: localhost
+  register: query_result
 
 - name: Query a specific AEP
   aci_aep:
@@ -83,6 +87,8 @@ EXAMPLES = r'''
     password: SomeSecretPassword
     aep: ACI-AEP
     state: query
+  delegate_to: localhost
+  register: query_result
 '''
 
 RETURN = r'''