Releaser: remove luxcore-ref setting

Author: howetuft

.github/workflows/release.yml

@@ -18,11 +18,6 @@ on:
         required: False
         default: LuxCore Wheels
         type: string
-      luxcore-ref:
-        description: "LuxCore ref to checkout for build (default: current branch)"
-        required: True
-        default: ''
-        type: string
       allow-updates:
         description: "Update existing release (if any)"
         required: True
@@ -48,7 +43,6 @@ jobs:
     uses: LuxCoreRender/LuxCore/.github/workflows/wheels.yml@cbbdcbcd4119a981b36599a362c8792bdb7f0711
     with:
       repository: LuxCoreRender/LuxCore
-      ref: ${{ inputs.luxcore-ref }}
 
   create-release:
     name: 'Create release'