CI: disable caching for release builds (#2168)

This patch adds a (default-true) input called `cache-enabled` to the
setup-build action, so that when the input is false, ccache is not setup
on the host machine.  This patch also sets the input to be false for the
release builds.

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

@@ -2,6 +2,10 @@ name: "Setup build environment"
 description: "Setup the build environment. An action so that it can be shared between in-tree/out-of-tree jobs"
 
 inputs:
+  cache-enabled:
+    required: true
+    default: true
+
   cache-suffix:
     description: |
       Additional string that is used to compute the ccache hash.
@@ -48,6 +52,7 @@ runs:
     shell: bash
 
   - name: Configure ccache
+    if: ${{ inputs.cache-enabled == 'true' }}
     run: |
       rm -rf ${{ github.workspace }}/.ccache
       mkdir -p ${{ github.workspace }}/.ccache
@@ -58,6 +63,7 @@ runs:
     shell: bash
 
   - name: Enable ccache
+    if: ${{ inputs.cache-enabled == 'true' }}
     uses: actions/cache@v3
     with:
       path: ${{ github.workspace }}/.ccache

.github/workflows/buildRelease.yml

@@ -40,7 +40,7 @@ jobs:
 
     - uses: ./.github/actions/setup-build
       with:
-        cache-suffix: 'release'
+        cache-enabled: 'false'
     - name: Build Python wheels and smoke test.
       run: |
         cd $GITHUB_WORKSPACE
@@ -99,7 +99,7 @@ jobs:
         submodules: 'true'
     - uses: ./.github/actions/setup-build
       with:
-        cache-suffix: 'release'
+        cache-enabled: 'false'
     - name: Build Python wheels and smoke test.
       run: |
         cd $GITHUB_WORKSPACE
@@ -159,7 +159,7 @@ jobs:
         submodules: 'true'
     - uses: ./.github/actions/setup-build
       with:
-        cache-suffix: 'release'
+        cache-enabled: 'false'
     - name: Set up Visual Studio shell
       uses: egor-tensin/vs-shell@v2
       with: