iosxr tests: Initial work for 2.3 (#20883)

Ensure a loopback device exists for testing
Remove provider:
Default is to run task on Network, device, use delegate_to: localhost for local tasks.

test/integration/targets/iosxr_command/tests/cli/bad_operator.yaml

@@ -8,7 +8,6 @@
       - show interfaces GigabitEthernet 0/0
     wait_for:
       - "result[0] contains 'Description: Foo'"
-    provider: "{{ cli }}"
   register: result
   ignore_errors: yes
 

test/integration/targets/iosxr_command/tests/cli/contains.yaml

@@ -9,7 +9,6 @@
     wait_for:
       - "result[0] contains 6.0.0"
       - "result[1] contains GigabitEthernet0/0/0/1"
-    provider: "{{ cli }}"
   register: result
 
 - assert:

test/integration/targets/iosxr_command/tests/cli/invalid.yaml

@@ -4,7 +4,6 @@
 - name: run invalid command
   iosxr_command:
     commands: ['show foo']
-    provider: "{{ cli }}"
   register: result
   ignore_errors: yes
 
@@ -17,7 +16,6 @@
     commands:
       - show version
       - show foo
-    provider: "{{ cli }}"
   register: result
   ignore_errors: yes
 

test/integration/targets/iosxr_command/tests/cli/output.yaml

@@ -4,7 +4,6 @@
 - name: get output for single command
   iosxr_command:
     commands: ['show version']
-    provider: "{{ cli }}"
   register: result
 
 - assert:
@@ -17,7 +16,6 @@
     commands:
       - show version
       - show interfaces
-    provider: "{{ cli }}"
   register: result
 
 - assert:

test/integration/targets/iosxr_command/tests/cli/timeout.yaml

@@ -7,7 +7,6 @@
       - show version
     wait_for:
       - "result[0] contains bad_value_string"
-    provider: "{{ cli }}"
   register: result
   ignore_errors: yes