chore(deps): update github artifact actions

Author: renovate[bot]

.github/workflows/percy-prepare.yml

@@ -62,7 +62,7 @@ jobs:
 
       # Upload artifact so the `pr-percy-snapshots` workflow can pick it up
       - name: Upload artifact
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v7
         with:
           name: "percy-testing-web-artifact"
           path: artifact/*

.github/workflows/pr-percy-snapshots.yml

@@ -29,7 +29,7 @@ jobs:
         run: rm -rf templates/docs/examples/ templates/_macros/ tokens/ sd.config.json scss/
 
       - name: Download artifact from prepare workflow
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v8
         with:
           name: "percy-testing-web-artifact"
           github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/publish-on-release.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Show size of the build file
         run: stat -c '%s' build/css/build.css
       - run: cp VANILLA_VERSION build/css
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v7
         with:
           name: css
           path: build/css
@@ -54,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/download-artifact@v6
+      - uses: actions/download-artifact@v8
         with:
           name: css
           path: css