Try to fix playwright by removing extra Rust cache

Otherwise, all dependencies seem to be missing:

```
   Compiling gitbutler-oxidize v0.0.0 (/home/runner/work/gitbutler/gitbutler/crates/gitbutler-oxidize)
   Compiling gitbutler-fs v0.0.0 (/home/runner/work/gitbutler/gitbutler/crates/gitbutler-fs)
   Compiling gitbutler-id v0.0.0 (/home/runner/work/gitbutler/gitbutler/crates/gitbutler-id)
   Compiling gitbutler-tagged-string v0.0.0 (/home/runner/work/gitbutler/gitbutler/crates/gitbutler-tagged-string)
error[E0463]: can't find crate for `gix`
 --> crates/gitbutler-oxidize/src/lib.rs:4:5
  |
4 | use gix::bstr::ByteSlice;
  |     ^^^ can't find crate

error[E0463]: can't find crate for `gix`
 --> crates/gitbutler-fs/src/lib.rs:9:5
```

Author: Byron

.github/workflows/test-e2e-playwright.yml

@@ -54,16 +54,6 @@ jobs:
       - name: Setup rust-toolchain stable
         id: rust-toolchain
         uses: dtolnay/rust-toolchain@stable
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: cargo-${{ steps.rust-toolchain.outputs.cachekey }}-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: cargo-
       - name: Setup node environment
         uses: ./.github/actions/init-env-node
       - id: get_playwright_version