fix yaml

Author: mattip

.github/workflows/posix.yml

@@ -58,17 +58,15 @@ jobs:
         submodules: recursive
         fetch-depth: 0
 
-   - uses: maxim-lobanov/setup-xcode@v1.6.0
-      if: ${{ matrix.os == 'macos-latest' }}
-      with:
-        xcode-version: '16.0'
-
-   - uses: maxim-lobanov/setup-xcode@v1.6.0
-      if: ${{ matrix.os == 'macos-14' }}
-      with:
-        xcode-version: '15.4'
-
-
+    - uses: maxim-lobanov/setup-xcode@v1.6.0
+       if: ${{ matrix.os == 'macos-latest' }}
+       with:
+         xcode-version: '16.0'
+
+    - uses: maxim-lobanov/setup-xcode@v1.6.0
+       if: ${{ matrix.os == 'macos-14' }}
+       with:
+         xcode-version: '15.4'
 
     - name: Print some Environment variable
       run: |