ci : refactor (#23789)

* ci : separate CUDA windows workflow + fix names

* ci : rename workflow

* ci : prefix cache names with workflow name

* ci : rename build.yml -> build-cpu.yml

* ci : cache keys

* ci : fix windows cuda/hip concurrency of release workflow

* ci : fix apple cache names

* ci : add TODOs

* cont : keep just the last cache

* ci : update release concurrency to queue

* ci : move the release trigger to ubuntu-slim

* ci : hip add TODO

* cont : improve words

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

.github/workflows/build-sycl.yml

@@ -88,7 +88,7 @@ jobs:
 #      - name: ccache
 #        uses: ggml-org/ccache-action@v1.2.21
 #        with:
-#          key: ubuntu-24-sycl-${{ matrix.build }}
+#          key: sycl-ubuntu-24-${{ matrix.build }}
 #          evict-old-files: 1d
 #          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
 #
@@ -150,7 +150,7 @@ jobs:
 #      - name: ccache
 #        uses: ggml-org/ccache-action@v1.2.21
 #        with:
-#          key: windows-latest-sycl
+#          key: sycl-windows-latest
 #          variant: ccache
 #          evict-old-files: 1d
 #          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}