Merge pull request #69 from OpenVoxProject/armhf

CI: Make ref optional

Author: bastelfreak

.github/workflows/build_vanagon.yml

@@ -4,8 +4,8 @@ on:
   workflow_call:
     inputs:
       ref:
-        description: 'Tag to build'
-        required: true
+        description: 'Git ref to build'
+        required: false
         type: string
       project_name:
         description: 'The vanagon project to build'
@@ -172,7 +172,7 @@ jobs:
           git config --global core.autocrlf false
           git config --global core.eol lf
 
-      - name: Checkout code at tag
+      - name: Checkout code
         uses: actions/checkout@v6
         with:
           ref: ${{ inputs.ref }}