CI: Bump to Xcode 26.2 (Swift 6.2.3) to fix Xcode workspace crash?

Author: stackotter

.github/workflows/build-test-and-docs.yml

@@ -74,10 +74,10 @@ jobs:
           - TV
           - Vision
     steps:
-    - name: Setup Xcode 16.4 (Swift 6.1.2)
+    - name: Setup Xcode 26.2 (Swift 6.2.3)
       uses: maxim-lobanov/setup-xcode@v1.6.0
       with:
-        xcode-version: '16.4'
+        xcode-version: '26.2'
 
     - name: Swift version
       run: swift --version
@@ -145,10 +145,10 @@ jobs:
   uikit-catalyst:
     runs-on: macos-15
     steps:
-    - name: Setup Xcode 16.4 (Swift 6.1)
+    - name: Setup Xcode 26.2 (Swift 6.2.3)
       uses: maxim-lobanov/setup-xcode@v1.6.0
       with:
-        xcode-version: '16.4'
+        xcode-version: '26.2'
 
     - name: Swift version
       run: swift --version