ci: drop cache which is banned

Signed-off-by: tison <wander4096@gmail.com>

.github/workflows/deploy.yml

diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 8743538..cdf9a8c 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -19,7 +19,6 @@
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: Swatinem/rust-cache@v2
       - run: make install
       - run: make build
       - uses: peaceiris/actions-gh-pages@v3