Bump actions/download-artifact from 4 to 6 (#2297)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build-wasm-examples.yml

@@ -88,7 +88,7 @@ jobs:
       steps:
 
         - name: Download all artifacts
-          uses: actions/download-artifact@v4
+          uses: actions/download-artifact@v6
 
         - name: Group examples in one folder
           run: |

.github/workflows/ci.yml

@@ -236,27 +236,27 @@ jobs:
       - name: Move Bevy assets to static files
         # during the real build, this is handled by the generate_wasm_examples.sh script.
         run: mv bevy/assets static/assets/examples/
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v6
         with:
           name: generated-assets
           path: content/assets
 
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v6
         with:
           name: generated-errors
           path: content/learn/errors
 
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v6
         with:
           name: generated-wasm-examples
           path: content/examples
 
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v6
         with:
           name: generated-wasm-examples-webgpu
           path: content/examples-webgpu
 
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v6
         with:
           name: generated-community
           path: content/community/people

.github/workflows/update-screenshots.yml

@@ -90,7 +90,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Download all artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
 
       - name: Move examples to the correct folder
         run: |