⬆️ Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/simple-program-linux.yml

@@ -59,7 +59,7 @@ jobs:
         cp screencap.png screenshot-py${{ matrix.python-version }}.png
 
     - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: screenshot-py${{ matrix.python-version }}
         path: screenshot-*.png

.github/workflows/simple-program-macos.yml

@@ -59,7 +59,7 @@ jobs:
         cp screencap.png screenshot-py${{ matrix.python-version }}.png
 
     - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: screenshot-py${{ matrix.python-version }}
         path: screenshot-*.png

.github/workflows/simple-program-windows.yml

@@ -65,7 +65,7 @@ jobs:
         cp screencap.png screenshot-py${{ matrix.python-version }}.png
 
     - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: screenshot-py${{ matrix.python-version }}
         path: screenshot-*.png

.github/workflows/system-monitor-linux.yml

@@ -65,7 +65,7 @@ jobs:
         cp screencap.png screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}.png
 
     - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}
         path: screenshot-*.png

.github/workflows/system-monitor-macos.yml

@@ -65,7 +65,7 @@ jobs:
         cp screencap.png screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}.png
 
     - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}
         path: screenshot-*.png

.github/workflows/system-monitor-windows.yml

@@ -71,7 +71,7 @@ jobs:
         cp screencap.png screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}.png
 
     - name: Archive a screenshot
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: screenshot-py${{ matrix.python-version }}-${{ matrix.theme }}
         path: screenshot-*.png

.github/workflows/themes-screenshot-on-pr.yml

@@ -65,7 +65,7 @@ jobs:
         done
 
     - name: Archive screenshots
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: themes-screenshots
         path: |