[BUG] cargo generate failure

## The issue The docs https://github.com/cloudflare/workers-rs#getting-started says to run: ``` cargo generate cloudflare/workers-rs ``` But this fails: ``` cargo generate cloudflare/workers-rs ⚠️ Favorite `cloudflare/workers-rs` not found in config, using it as a git repository: https://github.com/cloudflare/workers-rs.git Error: all authentication attempts failed ``` Even direct command fails: ``` ~ % cargo generate --git https://github.com/cloudflare/workers-rs.git Error: all authentication attempts failed ``` After a some digging (checking configs of git, ssh; testing other repos) and reviewing past issues in cargo-generate, it boils down to a recent change in worker-rs repo, related to submodules, being the cause: https://github.com/cloudflare/workers-rs/blob/7ad71392841a4ed049fbf497e6fdf22e5e6732fb/.gitmodules The lines ``` url = git@github.com:guybedford/wasm-streams.git url = git@github.com:wasm-bindgen/ts-gen ``` causes some resolution issue. ## suggested fix Changing those lines to ``` url = https://github.com/guybedford/wasm-streams url = https://github.com/wasm-bindgen/ts-gen ``` fixes the issue. Running the same command against my change runs fine: ``` test % cargo generate https://github.com/jccampagne/workers-rs ⚠️ Favorite `https://github.com/jccampagne/workers-rs` not found in config, using it as a git repository: https://github.com/jccampagne/workers-rs ✔ 🤷 Which template should be expanded? · templates/hello-world 🤷 Project Name: test-hello-world 🔧 Destination: /private/tmp/test/test-hello-world ... 🔧 project-name: test-hello-world ... 🔧 Generating template ... ✔ 🤷 Enable panic=unwind and abort recovery? · false [1/5] Done: .gitignore [2/5] Done: Cargo.toml [3/5] Done: src/lib.rs [4/5] Done: src 🔧 Moving generated files into: `/private/tmp/test/test-hello-world`... 🔧 Initializing a fresh Git repository ✨ Done! New project created /private/tmp/test/test-hello-world ```