Remove the cache directory before cargo test

.github/workflows/test.yml

@@ -87,6 +87,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
         with:
           key: "cargo-unit-test-cache"
+      - run: rm -r 'C:\Users\runneradmin\AppData\Local\voicevox_ort'
       - name: Run cargo unit test
         run: RUST_BACKTRACE=full cargo test --lib --bins -v -- --include-ignored
       - name: Run cargo documentation test