puppet: deprecate param timeout (#11658)

* puppet: deprecate param timeout

* add changelog frag

* Update changelogs/fragments/11658-puppet-timeout-deprecation.yml

Co-authored-by: Felix Fontein <felix@fontein.de>

---------

Co-authored-by: Felix Fontein <felix@fontein.de>

tests/unit/plugins/modules/test_puppet.yaml

@@ -198,6 +198,33 @@ test_cases:
           rc: 0
           out: ''
           err: ''
+  - id: puppet_agent_timeout_empty
+    input:
+      timeout: ""
+    output:
+      changed: false
+    mocks:
+      run_command:
+        - command: [/testbin/puppet, config, print, agent_disabled_lockfile]
+          environ: *env-def
+          rc: 0
+          out: blah, anything
+          err: ''
+        - command:
+            - /testbin/puppet
+            - agent
+            - --onetime
+            - --no-daemonize
+            - --no-usecacheonfailure
+            - --no-splay
+            - --detailed-exitcodes
+            - --verbose
+            - --color
+            - '0'
+          environ: *env-def
+          rc: 0
+          out: ''
+          err: ''
   - id: puppet_agent_waitforlock
     input:
       waitforlock: 30