Upgrade GitHub action upload-artifact (#371)

Author: hpoettker

.github/workflows/build.yml

@@ -26,7 +26,7 @@ jobs:
         continue-on-error: true
       - name: Upload test log
         if: steps.make-check.outcome == 'failure'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: test-suite-log-linux-${{ matrix.compiler }}
           path: test-suite.log
@@ -59,7 +59,7 @@ jobs:
         continue-on-error: true
       - name: Upload test log
         if: steps.make-check.outcome == 'failure'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: test-suite-log-macos-${{ matrix.compiler }}
           path: test-suite.log
@@ -96,7 +96,7 @@ jobs:
         continue-on-error: true
       - name: Upload test log
         if: steps.make-check.outcome == 'failure'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: test-suite-log-windows
           path: test-suite.log

.github/workflows/fuzz.yml

@@ -16,7 +16,7 @@ jobs:
         fuzz-seconds: 600
         dry-run: false
     - name: Upload Crash
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       if: failure()
       with:
         name: artifacts