Add backup filename and dir path option for config network modules (#50801)

* Add configurable backup path option for network config modules

Fixes #50283
Fixes #32724

*  Add back_options in network config module argspec
*  Handle backup path options in network action plugin

* Fix review comments

* Add integration tests

* Update changelog

test/integration/targets/ios_config/tests/cli/backup.yaml

@@ -1,5 +1,5 @@
 ---
-- debug: msg="START cli/backup.yaml on connection={{ ansible_connection }}"
+- debug: msg="START cli/cli_backup.yaml on connection={{ ansible_connection }}"
 
 - name: setup
   ios_config:
@@ -46,4 +46,80 @@
     that:
       - "backup_files.files is defined"
 
-- debug: msg="END cli/backup.yaml on connection={{ ansible_connection }}"
+- name: delete configurable backup file path
+  file:
+    path: "{{ item }}"
+    state: absent
+  with_items:
+    - "{{ role_path }}/backup_test_dir/"
+    - "{{ role_path }}/backup/backup.cfg"
+
+- name: take configuration backup in custom filename and directory path
+  ios_config:
+    backup: yes
+    backup_options:
+      filename: backup.cfg
+      dir_path: "{{ role_path }}/backup_test_dir/{{ inventory_hostname_short }}"
+  become: yes
+  register: result
+
+- assert:
+    that:
+      - "result.changed == true"
+
+- name: check if the backup file-1 exist
+  find:
+    paths: "{{ role_path }}/backup_test_dir/{{ inventory_hostname_short }}/backup.cfg"
+  register: backup_file
+  connection: local
+
+- assert:
+    that:
+      - "backup_file.files is defined"
+
+- name: take configuration backup in custom filename
+  ios_config:
+    backup: yes
+    backup_options:
+      filename: backup.cfg
+  become: yes
+  register: result
+
+- assert:
+    that:
+      - "result.changed == true"
+
+- name: check if the backup file-2 exist
+  find:
+    paths: "{{ role_path }}/backup/backup.cfg"
+  register: backup_file
+  connection: local
+
+- assert:
+    that:
+      - "backup_file.files is defined"
+
+- name: take configuration backup in custom path and default filename
+  ios_config:
+    backup: yes
+    backup_options:
+      dir_path: "{{ role_path }}/backup_test_dir/{{ inventory_hostname_short }}"
+  become: yes
+  register: result
+
+- assert:
+    that:
+      - "result.changed == true"
+
+- name: check if the backup file-3 exist
+  find:
+    paths: "{{ role_path }}/backup_test_dir/{{ inventory_hostname_short }}"
+    pattern: "{{ inventory_hostname_short }}_config*"
+  register: backup_file
+  connection: local
+
+- assert:
+    that:
+      - "backup_file.files is defined"
+
+- debug: msg="END cli/cli_backup.yaml on connection={{ ansible_connection }}"