remove sccache due to the instability

.github/actions/common-setup/action.yml

@@ -100,21 +100,14 @@ runs:
         path: ${{ github.workspace }}/build/llvm-project-install
         key: ${{ steps.cache-llvm.outputs.cache-primary-key }}
 
-    - name: Set environment variable for CMake and sccache
+    - name: Set environment variable for CMake
       shell: bash
       run: |
         if [ "${{inputs.build-llvm}}" == "true" ]; then
           echo "LLVM_DIR=${{ github.workspace }}/build/llvm-project-install" >> "$GITHUB_ENV"
           echo "Clang_DIR=${{ github.workspace }}/build/llvm-project-install" >> "$GITHUB_ENV"
         fi
 
-        # Set CMake to use sccache if it's available
-        if command -v sccache; then
-          echo "CMAKE_CXX_COMPILER_LAUNCHER=sccache" >> "$GITHUB_ENV"
-          echo "CMAKE_C_COMPILER_LAUNCHER=sccache" >> "$GITHUB_ENV"
-        fi
-        echo SCCACHE_IGNORE_SERVER_IO_ERROR=1 >> "$GITHUB_ENV"
-
     # Install swiftshader
     - uses: robinraju/release-downloader@v1.11
       continue-on-error: true

.github/workflows/release.yml

@@ -3,16 +3,8 @@ name: Release
 on:
   workflow_dispatch:
   push:
-    # Also run on pushes to the main branch so that we can keep the llvm and sccache
-    # caches filled in a scope available to everyone
-    branches:
-      - master
-    paths-ignore:
-      - "docs/**"
-      - "LICENSES/**"
-      - "LICENSE"
-      - "CONTRIBUTING.md"
-      - "README.md"
+    # We are not caching the builds so we don't want to run the release workflow for every push to master;
+    # The release workflow is only triggered by tags or manual dispatch
     tags:
       - "v*"
 jobs: