Exclude Qt 5.x and 6.2 with Clang on macOS 14+

Author: pcolby

.github/workflows/build.yaml

@@ -177,10 +177,25 @@ jobs:
           - { qt: '5.14.2',  os: macos-15, env: { cc: gcc-14 } }
           - { qt: '5.15.2',  os: macos-14, env: { cc: gcc-14 } }
           - { qt: '5.15.2',  os: macos-15, env: { cc: gcc-14 } }
+          # Exclude Qt 5.x and 6.2 with Clang on macOS 14+, since these have unit tests that hang on GitHub's runners.
+          - { qt: '5.9.9',   os: macos-14, env: { cc: clang } } # \todo Explore these hangs on a local macOS host,
+          - { qt: '5.9.9',   os: macos-15, env: { cc: clang } } # \todo because they might not be specific to GitHub.
+          - { qt: '5.10.1',  os: macos-14, env: { cc: clang } }
+          - { qt: '5.10.1',  os: macos-15, env: { cc: clang } }
+          - { qt: '5.11.3',  os: macos-14, env: { cc: clang } }
+          - { qt: '5.11.3',  os: macos-15, env: { cc: clang } }
+          - { qt: '5.12.12', os: macos-14, env: { cc: clang } }
+          - { qt: '5.12.12', os: macos-15, env: { cc: clang } }
+          - { qt: '5.13.2',  os: macos-14, env: { cc: clang } }
+          - { qt: '5.13.2',  os: macos-15, env: { cc: clang } }
+          - { qt: '5.14.2',  os: macos-14, env: { cc: clang } }
+          - { qt: '5.14.2',  os: macos-15, env: { cc: clang } }
+          - { qt: '5.15.2',  os: macos-14, env: { cc: clang } }
+          - { qt: '5.15.2',  os: macos-15, env: { cc: clang } }
+          - { qt: '6.2.4',   os: macos-14, env: { cc: clang } }
+          - { qt: '5.2.4',   os: macos-15, env: { cc: clang } }
           # Exclude Qt 5.10 with GCC on macOS. See https://bugreports.qt.io/browse/QTBUG-66585
           - { qt: '5.10.1', env: { cc: gcc-14 } }
-          # Exclude Qt 6.2 on macOS 14+ (Qt6 only officially supports macOS 14 from Qt 6.4+, and some 6.2.n LTS update).
-          #- { qt: '6.2.4',   os: 'macos-14' }
           # Exclude Qt 6.x with GCC on macOS for now. See https://bugreports.qt.io/browse/QTBUG-107050
           - { qt: '6.2.4', env: { cc: gcc-14 } }
           - { qt: '6.3.2', env: { cc: gcc-14 } }