Update deprecated actions to newer versions.

Author: MBilderbeek

.github/workflows/workflow-build-macos.yaml

@@ -15,7 +15,7 @@ jobs:
       run: |
         git config --global init.defaultBranch master
     - name: Checkout repository code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Compile repository code
@@ -31,7 +31,7 @@ jobs:
         cd derived/root
         tar cvfj ../../openmsx-debugger-macos-${{ env.package_origin }}.tbz "openMSX Debugger.app"
     - name: Upload redistributable package for Mac OS
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: macos
         path: |

.github/workflows/workflow-build-ubuntu.yaml

@@ -15,7 +15,7 @@ jobs:
       run: |
         git config --global init.defaultBranch master
     - name: Checkout repository code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Compile repository code
@@ -28,7 +28,7 @@ jobs:
         cd derived/bin
         tar cvf ../../openmsx-debugger-ubuntu-${{ env.package_origin }}.tbz .
     - name: Upload redistributable package for Ubuntu
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: ubuntu
         path: |

.github/workflows/workflow-build-windows.yaml

@@ -20,7 +20,7 @@ jobs:
       run: |
         git config --global init.defaultBranch master
     - name: Checkout repository code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Compile repository code
@@ -65,7 +65,7 @@ jobs:
         cp -rp /usr/x86_64-w64-mingw32/lib/qt/plugins/platforms/qwindows.dll platforms/
         tar cvf ../../openmsx-debugger-mingw32-${{ env.package_origin }}.zip .
     - name: Upload redistributable package for Windows
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: mingw32
         path: |