feat(workflows): add builder args option for Build workflow

.github/workflows/_build.yml

@@ -20,6 +20,10 @@ on:
         description: Override git SHA to build
         type: string
         required: false
+      build_args:
+        description: Custom arguments passed to build script
+        type: string
+        required: false
       test_build_name:
         description: "Test build name"
         type: string
@@ -149,6 +153,7 @@ jobs:
         run: >-
           ./builder/build-emacs-for-macos --plan build-plan.yml
           --no-relink-eln-files --native-full-aot
+          ${{ inputs.build_args }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Upload unsigned app artifact

.github/workflows/build.yml

@@ -14,6 +14,10 @@ on:
         description: "Git ref to checkout of build-emacs-for-macos"
         required: true
         default: "master"
+      builder_args:
+        description: Custom arguments passed to build script
+        required: false
+        default: ""
       os:
         description: 'Runner OS ("macos-10.15" or "macos-11")'
         required: true
@@ -44,6 +48,7 @@ jobs:
       os: macos-10.15
       git_ref: ${{ github.event.inputs.git_ref }}
       git_sha: ${{ github.event.inputs.git_sha }}
+      build_args: ${{ github.event.inputs.builder_args }}
       test_build_name: ${{ github.event.inputs.test_build_name }}
       test_release_type: ${{ github.event.inputs.test_release_type }}
     secrets: