chore(ci): remove sccache from release workflow (#24)

Remove sccache-action and related environment variables from the release
workflow. Keep only Swatinem/rust-cache for dependency caching.

This simplifies the release build process and relies solely on Cargo's
standard caching mechanism, which is sufficient for release builds.

Author: bug-ops

.github/workflows/release.yml

@@ -96,15 +96,6 @@ jobs:
         if: matrix.use_cross
         run: cargo binstall --no-confirm cross
 
-      - name: Setup sccache
-        uses: mozilla-actions/sccache-action@v0.0.8
-
-      - name: Configure sccache
-        run: |
-          echo "RUSTC_WRAPPER=sccache" >> $GITHUB_ENV
-          echo "SCCACHE_GHA_ENABLED=true" >> $GITHUB_ENV
-        shell: bash
-
       - name: Cache Cargo
         uses: Swatinem/rust-cache@v2
         with: