Cache path

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: ~/.cargo/cargo2junit
-          key: ${{ runner.os }}-primes
+          key: ${{ runner.os }}-cargo2junit
       - uses: actions-rs/cargo@v1
         with:
           command: install