Clean up more of the docs cache (#9910)

No need to cache the docs run. It was creating a 2GB cache file which uses up 20% of the 10GB allotment we have. It could be reduced to 1GB, how it's not really needed as without a cache this job only takes around 20 mins and could be split up to complete even faster.

Author: NigelBreslaw

.github/workflows/build_docs.yaml

@@ -53,6 +53,7 @@ jobs:
                   toolchain: nightly
                   components: rustfmt
                   target: aarch64-linux-android
+                  cache: false
             - name: Install apt dependencies
               run: sudo apt-get install doxygen
             - uses: baptiste0928/cargo-install@v3
@@ -198,5 +199,5 @@ jobs:
               run: cargo doc --workspace --no-deps --all-features --exclude slint-node --exclude pyslint --exclude mcu-board-support --exclude mcu-embassy --exclude printerdemo_mcu --exclude carousel --exclude test-* --exclude plotter --exclude uefi-demo --exclude ffmpeg --exclude gstreamer-player --exclude slint-cpp --exclude slint-python
             - name: Clean cache # Don't cache docs to avoid them including removed classes being published
               run: |
-                  rm -rf target/doc target/cppdocs api/node/docs api/python/slint/docs
+                  rm -rf target/doc target/cppdocs target/aarch64-linux-android api/node/docs api/python/slint/docs docs/astro docs/site