Cache everything in ~/.cargo

This may fix an issue where `cargo install wasm-bindgen-cli` fails due to a
conflicting binary existing in ~/.cargo/bin but other cargo files which track
the crate <-> binary association not being present (because they were not
cached).

.github/workflows/ci.yml

@@ -14,17 +14,14 @@ jobs:
     steps:
     - name: Checkout
       uses: actions/checkout@v3
-    - name: Setup rust
+    - name: Install Rust wasm toolchain
       run: rustup target add wasm32-unknown-unknown
       if: ${{ matrix.os == 'ubuntu-latest' }}
     - name: Cache
       uses: actions/cache@v3
       with:
         path: |
-          ~/.cargo/bin/
-          ~/.cargo/registry/index/
-          ~/.cargo/registry/cache/
-          ~/.cargo/git/db/
+          ~/.cargo/
           target/
         key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
     - name: Install wasm-bindgen