chore(deps): update actions/upload-artifact action to v7

Author: renovate[bot]

.github/workflows/articles_branch_ci.yaml

@@ -63,7 +63,7 @@ jobs:
         id: build
 
       - name: upload artifact to github
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: ${{ steps.build.outputs.article_name }}.pdf
           path: ${{ steps.extract_branch.outputs.branch }}/main.pdf

.github/workflows/master_branch_ci.yaml

@@ -31,7 +31,7 @@ jobs:
 
       - name: upload artifact to github
         if: ${{ github.event_name == 'push' }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: main.pdf
           path: main.pdf