Add integration workflow for pull requests

Author: AdamMomen

.github/workflows/integrate.yaml

@@ -31,7 +31,7 @@ jobs:
             - name: Install Foundry
               uses: foundry-rs/foundry-toolchain@v1
               with:
-                  version: nightly
+                  version: stable
 
             - name: Run Forge Install Script
               run: |