ci: Set foundry version

Signed-off-by: Maksim Dimitrov <dimitrov.maksim@gmail.com>

Author: dimitrovmaksim

.github/workflows/ci.yml

@@ -173,7 +173,7 @@ jobs:
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@82dee4ba654bd2146511f85f0d013af94670c4de # v1
         with:
-          version: nightly
+          version: nightly-669bb1f3bf6dcc33633c939a1bc32b1bcd28371f
 
       - name: Install pnpm
         uses: pnpm/action-setup@a7487c7e89a18df4991f7f222e4898a00d66ddda # v4