refeator: 升级CI的Qt版本

Author: s12mmm3

.github/workflows/macos.yml

@@ -24,8 +24,8 @@ jobs:
           # 6.2.4
           - qt_version: 6.2.4
             qt_arch: clang_64
-          # 6.7.2
-          - qt_version: 6.7.2
+          # 6.8.0
+          - qt_version: 6.8.0
             qt_arch: clang_64
             modules: 'qthttpserver qtwebsockets'
     env:

.github/workflows/ubuntu.yml

@@ -24,8 +24,8 @@ jobs:
           # 6.2.4
           - qt_version: 6.2.4
             qt_arch: gcc_64
-          # 6.7.2
-          - qt_version: 6.7.2
+          # 6.8.0
+          - qt_version: 6.8.0
             qt_arch: linux_gcc_64
             modules: 'qthttpserver qtwebsockets'
     env:

.github/workflows/windows.yml

@@ -34,8 +34,8 @@ jobs:
           - qt_version: 6.2.4
             qt_arch: win64_msvc2019_64
             arch: x64
-          # 6.7.2
-          - qt_version: 6.7.2
+          # 6.8.0
+          - qt_version: 6.8.0
             qt_arch: win64_msvc2019_64
             arch: x64
             modules: 'qthttpserver qtwebsockets'