try to expand the full inputs json

Signed-off-by: Justin Alvarez <[email protected]>

.github/workflows/e2e-docs.yaml

@@ -20,15 +20,7 @@ on:
 
 jobs:
   test:
-    runs-on:
-      [
-        "self-hosted",
-        "${{ inputs.arch }}",
-        "${{ inputs.runner-type }}",
-        "${{ inputs.test-command }}",
-        "${{ inputs.version }}",
-        "${{ inputs.os }}",
-      ]
+    runs-on: ${{ format('self-hosted, {0}', fromJSON(inputs)) }}
     steps:
       - name: Skip
         run: |