Update build.yml

.github/workflows/build.yml

@@ -25,19 +25,19 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout
+    - uses: actions/checkout@v2
       name: Checkout
 
     - name: Setup dotnet
-      uses: actions/setup-dotnet
+      uses: actions/setup-dotnet@v1
       with:
         dotnet-version: | 
           9.0.x
 
     - name: Setup Node.js (16.x)
-      uses: actions/setup-node
+      uses: actions/setup-node@v1
       with:
-        node-version: 20
+        node-version: 18
 
     - name: Variables
       run: |