Update actions/upload-artifact action to v5

Author: renovate[bot]

.github/workflows/compiler.yml

@@ -29,7 +29,7 @@ jobs:
         run: dotnet pack PascalABC.NET.Compiler --output nupkg
 
       - name: Upload the artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: compiler-package
           path: nupkg/*.nupkg

.github/workflows/sdk.yml

@@ -41,13 +41,13 @@ jobs:
           output: ./changelog-section.md
 
       - name: Upload the artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: sdk-package
           path: nupkg/*.nupkg
 
       - name: Upload the changelog
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: changelog-section.md
           path: ./changelog-section.md