CLDR-17168 gh:(deps): Bump actions/download-artifact from 3 to 4

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build-icu.yml

@@ -77,13 +77,13 @@ jobs:
     steps:
       - name: Download CLDR Production Artifact
         id: downloadprod
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: cldr-prod
           path: .
       - name: Download CLDR tools
         id: downloadtools
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: cldr-code
           path: cldr-code
@@ -176,7 +176,7 @@ jobs:
           ref: ${{ github.event.inputs.icu-ref }}
           lfs: false
       - name: Download icu-data.zip
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: icu-data
           path: .
@@ -222,7 +222,7 @@ jobs:
       - name: Checkout lfs objects
         run: git lfs pull
       - name: Download icu-data.zip
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: icu-data
           path: .

.github/workflows/maven.yml

@@ -198,7 +198,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Download cldr-apps.zip
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: cldr-apps-server
     - name: Deploy to cldr-smoke

.github/workflows/production.yml

@@ -80,7 +80,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Download cldr-apps.zip
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: cldr-apps-server
     - name: Deploy to st

.github/workflows/staging.yml

@@ -78,7 +78,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Download cldr-apps.zip
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: cldr-apps-server
     - name: Deploy to st