(CI) fix apt error

Author: a-maier

.github/workflows/release.yml

@@ -36,6 +36,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: ${{ matrix.target }}
+      - run: sudo apt update
       - run: sudo apt install musl-tools gcc-multilib
       - run: cargo build --target ${{ matrix.target }} --release --features capi,stripper-xml
       - run: ci/make_tarball.sh ${{ matrix.target }}