Add a repository input.

This adds a repository input that allows a different repository than the current one to be defined for pulling the JSON support files. This can be used to customize the matrix that is built.

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

@@ -11,6 +11,10 @@ on:
         description: 'The WordPress version to test . Accepts major and minor versions, "latest", or "nightly". Major releases must not end with ".0".'
         type: string
         default: 'nightly'
+      repository:
+        description: 'The repository to read the support JSON files from.'
+        type: string
+        default: 'WordPress/wordpress-develop'
     outputs:
       major-wp-version:
         description: "The major WordPress version based on the version provided in wp-version"
@@ -42,6 +46,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
+          repository: ${{ inputs.repository }}
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
 
       - name: Determine the major WordPress version