chore(deps): update github artifact actions (major)

.github/workflows/_release.yml

@@ -24,7 +24,7 @@ jobs:
       # docs-literalinclude:release-steps:start
       # Download every artifact produced earlier in the run (here: docs.zip).
       - name: Download artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v8
         with:
           merge-multiple: true
 

.github/workflows/docs.yml

@@ -103,7 +103,7 @@ jobs:
 
       # compression-level 0: docs.zip is already compressed.
       - name: Upload docs artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: docs
           path: ${{ runner.temp }}/docs.zip

.github/workflows/publish.yml

@@ -123,7 +123,7 @@ jobs:
       # find a stale prior build). Skipped on workflow_dispatch (version-name empty).
       - name: Download this run's docs artifact
         if: inputs.version-name != ''
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: docs
           path: ${{ runner.temp }}/assemble-current