Move away from being a null-router

Ensure that the "install" (etc.) state-file(s) doesn't evaluate to
empty: this should prevent previously-witnessed CI errors without
resorting to a bunch of other ugly and/or brittle kludgery

Author: ferricoxide

flux-cli/config/clean.sls

@@ -12,3 +12,6 @@ include:
   - flux-cli.config.win_clean
 {%- endif %}
 
+
+Avoid being a null-router:
+  test.nop: []

flux-cli/config/file.sls

@@ -16,3 +16,6 @@ include:
 {%- endif %}
 
 
+
+Avoid being a null-router:
+  test.nop: []

flux-cli/package/clean.sls

@@ -14,3 +14,6 @@ include:
   - flux-cli.package.win_clean
 {%- endif %}
 
+
+Avoid being a null-router:
+  test.nop: []

flux-cli/package/install.sls

@@ -12,3 +12,5 @@ include:
   - flux-cli.package.win_install
 {%- endif %}
 
+Avoid being a null-router:
+  test.nop: []