set path to umf.dll for windows

Author: bratpiorka

.github/workflows/basic.yml

@@ -103,6 +103,10 @@ jobs:
       - name: Build UMF
         run: cmake --build ${{github.workspace}}/build --config ${{matrix.build_type}} -j $Env:NUMBER_OF_PROCESSORS
 
+      - name: Set PATH
+        if: matrix.shared_library == 'ON'
+        run: echo "${{github.workspace}}/build/src/${{matrix.build_type}}" >> $GITHUB_PATH
+
       - name: Test
         working-directory: ${{github.workspace}}/build
         run: ctest -C ${{matrix.build_type}} --output-on-failure