Show OS in run-name

.github/workflows/cura-all-installers.yml

@@ -1,5 +1,5 @@
 name: Cura All Installers
-run-name: ${{ inputs.cura_conan_version }} by @${{ github.actor }}
+run-name: ${{ inputs.cura_conan_version }} for ${{ if inputs.build_windows then "Windows" }} ${{ if inputs.build_macos then "Mac" }} ${{ if inputs.build_linux then "Linux" }}
 
 on:
     workflow_dispatch: