Update cmake-multi-platform.yml

Author: sam-astro

.github/workflows/cmake-multi-platform.yml

@@ -15,8 +15,6 @@ jobs:
     strategy:
       # Set fail-fast to false to ensure that feedback is delivered for all matrix combinations. Consider changing this to true when your workflow is stable.
       fail-fast: false
-      build-dir: ./dcc_client/out-linux
-      source-dir: ./dcc_client
 
       # Set up a matrix to run the following 3 configurations:
       # 1. <Windows, Release, latest MSVC compiler toolchain on the default runner image, default generator>
@@ -25,6 +23,8 @@ jobs:
       #
       # To add more build types (Release, Debug, RelWithDebInfo, etc.) customize the build_type list.
       matrix:
+        build-dir: [./dcc_client/out-linux]
+        source-dir: [./dcc_client]
         os: [ubuntu-latest, windows-latest]
         build_type: [Release]
         c_compiler: [gcc, clang, cl]