Explicitly specify nightly version we have in the rust-toolchain

.github/workflows/deploy.yml

@@ -36,6 +36,7 @@ jobs:
       - name: Setup rust toolchain
         uses: dtolnay/rust-toolchain@stable
         with:
+          toolchain: nightly-2023-08-01
           targets: ${{ matrix.target }}
       - uses: davidB/rust-cargo-make@v1
         # This doesn't work on custom win runner, so we just skip it as it's installed already anyway