Use state: latest for dpkg_selections test.

We don't need to test with `upgrade: dist`, since we're not trying
to test the `apt` module. We just need to make sure the hold set
by the `dpkg_selections` module is working.

This change will avoid updating all the packages on the system,
which is slow, unnecessary, and can cause the installed python
to be changed.

(cherry picked from commit 136a2cca2f)

test/integration/targets/dpkg_selections/tasks/dpkg_selections.yaml

@@ -19,7 +19,9 @@
 
 - name: attempt to upgrade hello
   apt:
-    upgrade: dist
+    name: hello
+    state: latest
+  ignore_errors: yes
 
 - name: check hello version
   shell: dpkg -s hello | grep Version | awk '{print $2}'
@@ -37,7 +39,8 @@
 
 - name: upgrade hello
   apt:
-    upgrade: dist
+    name: hello
+    state: latest
 
 - name: check hello version
   shell: dpkg -s hello | grep Version | awk '{print $2}'