test: try using nightly for storage report

Author: ypatil12

.github/workflows/storage-report.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Install Foundry
         uses: foundry-rs/foundry-toolchain@v1
         with:
-          version: v1.3.5
+          version: nightly
 
       - name: "Generate and prepare the storage reports for current branch"
         run: |