fix foundry version: later version changed fmt conventions

Author: hoytech

.github/workflows/test.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@v1
         with:
-          version: nightly
+          version: v1.3.6
 
       - name: Show Forge version
         run: |