Also update versions used in CI, and remove reference in .gitmodules

.github/workflows/ci.yml

@@ -56,25 +56,25 @@ jobs:
             generator: Visual Studio 16 2019
             cmake-arch: Win32
             triplet: x86-windows-static-md
-            kf5: v5.106.0
+            kf5: v5.116.0
             qt: 5.15.2
             kf5_cmake_args: ""
             qt-arch: win32_msvc2019
           - os: windows-2019
             generator: Visual Studio 16 2019
             cmake-arch: x64
             triplet: x64-windows-static-md
-            kf5: v5.106.0
+            kf5: v5.116.0
             kf5_cmake_args: ""
             qt: 5.15.2
             qt_arch: win64_msvc2019_64
           - os: windows-2019
             generator: Visual Studio 16 2019
             cmake-arch: x64
             triplet: x64-windows-static-md
-            kf5: v5.106.0
+            kf5: v6.6.0
             kf5_cmake_args: "-DBUILD_WITH_QT6=ON"
-            qt: 6.5.1
+            qt: 6.5.3
             qt_arch: win64_msvc2019_64
 
     steps:
@@ -108,7 +108,7 @@ jobs:
 
       # Qt5 takes roughly a thousand years to build, so we download it from elsewhere...
       - name: Install Qt
-        uses: jurplel/install-qt-action@v3
+        uses: jurplel/install-qt-action@v4
         with:
           arch: ${{ matrix.cfg.qt-arch }}
           version: ${{ matrix.cfg.qt }}
@@ -142,7 +142,6 @@ jobs:
           path: syntax-highlighting
           ref: ${{ matrix.cfg.kf5 }}
 
-      - uses: shogo82148/actions-setup-perl@v1
       - name: Build KF5SyntaxHighlighting
         run: |
           cd syntax-highlighting

.gitmodules

@@ -1,6 +1,3 @@
 [submodule "pycdc"]
 	path = pycdc
 	url = https://github.com/zrax/pycdc
-[submodule "qtextpad"]
-	path = qtextpad
-	url = https://github.com/zrax/qtextpad