Update ci.yml

Author: mcbarton

.github/workflows/ci.yml

@@ -283,7 +283,7 @@ jobs:
         compiler: ${{ matrix.compiler }}
 
     - uses: maxim-lobanov/setup-xcode@v1
-      if: ${{ runner.os == 'macOS' && steps.cache.outputs.cache-hit != 'true' && ${{ matrix.cling }} == 'On' }}
+      if: ${{ runner.os == 'macOS' && steps.cache.outputs.cache-hit != 'true' && matrix.cling == 'On' }}
       with:
         xcode-version: '15.4.0'
 
@@ -776,7 +776,7 @@ jobs:
         compiler: ${{ matrix.compiler }}
 
     - uses: maxim-lobanov/setup-xcode@v1
-      if: ${{ runner.os == 'macOS' && ${{ matrix.cling }} == 'On' }}
+      if: ${{ runner.os == 'macOS' && matrix.cling == 'On' }}
       with:
         xcode-version: '15.4.0'