Update upm-ci.yml

Author: stefanunity

.yamato/upm-ci.yml

@@ -25,7 +25,7 @@
     - move /Y .\Assets\Samples.meta .\Packages\com.unity.inputsystem
     - upm-ci package pack --package-path ./Packages/com.unity.inputsystem/
     # Run upm-ci verification tests as well as tests contained in the package.
-    - upm-ci package test --package-path ./Packages/com.unity.inputsystem/ -u {% if EDITOR_REVISION_OVERRIDE != nil %} {{ editor.version }} {% else %} EDITOR_REVISION_OVERRIDE {% endif %}
+    - upm-ci package test --package-path ./Packages/com.unity.inputsystem/ -u {% if EDITOR_REVISION_OVERRIDE != none %} {{ editor.version }} {% else %} %EDITOR_REVISION_OVERRIDE% {% endif %}
       {% if platform.name == "win" %} --enable-code-coverage --code-coverage-options "generateAdditionalMetrics;generateHtmlReport;assemblyFilters:+Unity.InputSystem" 
       --extra-utr-arg="--coverage-results-path={{ yamato_source_dir_win }}/upm-ci~/test-results/CodeCoverage/Package" {% endif %}
     {% if platform.installscript %}