idk lets try this

.github/workflows/build.yml

@@ -0,0 +1,21 @@
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - id: make_version_string
+      uses: ./.github/actions/make-version-string
+      with:
+        assemblyInfoPath: AssemblyInfo.cs
+    - uses: ./.github/actions/expand-tokens
+      env:
+        VERSIONSTRING: ${{ steps.make_version_string.outputs.versionstring }}
+      with:
+        path: Constants.cs
+#    - name: Publish to Registry
+#      uses: elgohr/Publish-Docker-Github-Action@master
+#      with:
+#        name: sandersaares/test123
+#        username: sandersaares
+#        password: ${{ secrets.docker_hub_token }}