correctly handle matrix in test for workflow dispatch

Author: cderv

.github/workflows/test.yaml

@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: ['release', 'pre-release']
+        version: ${{ inputs.version && format('["{0}"]', inputs.version) || fromJSON('["release", "pre-release"]') }}
         config:
           # Default config for standard platforms
           - os: macos-latest
@@ -46,7 +46,7 @@ jobs:
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          version: ${{ inputs.version || matrix.version }}
+          version: ${{ matrix.version }}
           tinytex: ${{ inputs.tinytex || matrix.config.tinytex || 'true' }}
 
       - run: quarto --version