ci: switch to Foundry stable

Author: DaniPopes

.github/workflows/ci.yml

@@ -16,8 +16,6 @@ jobs:
 
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@v1
-        with:
-          version: nightly
 
       - name: Print forge version
         run: forge --version
@@ -104,8 +102,6 @@ jobs:
 
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@v1
-        with:
-          version: nightly
 
       - name: Print forge version
         run: forge --version
@@ -121,8 +117,6 @@ jobs:
 
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@v1
-        with:
-          version: nightly
 
       - name: Print forge version
         run: forge --version