gitlab-ci: update to Xcode 16.1

.gitlab/os-macos.yml

@@ -7,7 +7,7 @@
         GIT_CLONE_PATH: "$CI_BUILDS_DIR/vtk-ci-ext/$CI_CONCURRENT_ID"
         # TODO: Factor this out so that each job selects the Xcode version to
         # use so that different versions can be tested in a single pipeline.
-        DEVELOPER_DIR: "/Applications/Xcode-15.4.app/Contents/Developer"
+        DEVELOPER_DIR: "/Applications/Xcode-16.1.app/Contents/Developer"
 
 .wheel_macos_arm64:
     extends: .macos
@@ -137,7 +137,7 @@
         - vtk
         - macos-x86_64
         - shell
-        - xcode-15.4
+        - xcode-16.1
         - nonconcurrent
 
 .macos_x86_64_wheel_builder_tags:
@@ -145,7 +145,7 @@
         - vtk
         - macos-x86_64
         - shell
-        - xcode-15.4
+        - xcode-16.1
         - concurrent
 
 .macos_x86_64_ext_builder_tags:
@@ -153,7 +153,7 @@
         - vtk
         - macos-x86_64
         - shell
-        - xcode-15.4
+        - xcode-16.1
         - concurrent
 
 .macos_arm64_builder_tags:
@@ -161,7 +161,7 @@
         - vtk
         - macos-arm64
         - shell
-        - xcode-15.4
+        - xcode-16.1
         - nonconcurrent
 
 .macos_arm64_wheel_builder_tags:
@@ -169,7 +169,7 @@
         - vtk
         - macos-arm64
         - shell
-        - xcode-15.4
+        - xcode-16.1
         - concurrent
 
 ## macOS-specific scripts