fix(ci): avoid sccache on linux aarch64 builds (n0-computer#1762)

## Description

No sccache release binaries for linux aarch64 available, and self
building is worse for perf.

## Notes & open questions

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## Change checklist

- [ ] Self-review.
- [ ] Documentation updates if relevant.
- [ ] Tests if relevant.

.github/workflows/ci.yml

@@ -210,6 +210,7 @@ jobs:
         rustup toolchain install ${{ matrix.rust }}
     
     - name: Run sccache-cache
+      if: matrix.release-os != 'linux' && matrix.release-arch != 'aarch64'
       uses: mozilla-actions/[email protected]
 
     - name: build release