Build/Test Tools: Support trunk as a version.

`trunk` is used interchangeably with `nightly`, so should be an accepted value when determining which version of WordPress is being tested.

Follow up to [59452], [59483].

Props johnbillion.
See #62221.

git-svn-id: https://develop.svn.wordpress.org/trunk@59491 602fd350-edb4-49c9-b593-d223f7449a82

.github/workflows/reusable-support-json-reader-v1.yml

@@ -52,9 +52,9 @@ jobs:
       - name: Determine the major WordPress version
         id: major-wp-version
         run: |
-          if [ "${{ inputs.wp-version }}" ] && [ "${{ inputs.wp-version }}" != "nightly" ] && [ "${{ inputs.wp-version }}" != "latest" ]; then
+          if [ "${{ inputs.wp-version }}" ] && [ "${{ inputs.wp-version }}" != "nightly" ] && [ "${{ inputs.wp-version }}" != "latest" ] && [ "${{ inputs.wp-version }}" != "trunk" ]; then
             echo "version=$(echo "${{ inputs.wp-version }}" | tr '.' '-' | cut -d '-' -f1-2)" >> $GITHUB_OUTPUT
-          elif [ "${{ inputs.wp-version }}" ]; then
+          elif [ "${{ inputs.wp-version }}" ] && [ "${{ inputs.wp-version }}" != "trunk" ]; then
             echo "version=$(echo "${{ inputs.wp-version }}")" >> $GITHUB_OUTPUT
           else
             echo "version=nightly" >> $GITHUB_OUTPUT