Update nightly.yml

Author: opensource-krzysztof

.github/workflows/nightly.yml

@@ -135,6 +135,11 @@ jobs:
       if: matrix.generator == 'Ninja'
       uses: seanmiddleditch/gha-setup-ninja@3b1f8f94a2f8254bd26914c4ab9474d4f0015f67 # v6
 
+    - name: NMake Makefiles
+      if: matrix.generator == 'NMake Makefiles'
+      run: cmake -G "NMake Makefiles"
+      
+
     - name: Configure MSVC environment
       uses: ilammy/msvc-dev-cmd@0b201ec74fa43914dc39ae48a89fd1d8cb592756 # v1.13.0