.github: update zoomin.yml to use upload v4 (#296)

* .github: update zoomin.yml to use upload v4

Updated zoomin.yml file to actions/upload-artifact@v4.
NCD-1100.

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

* update checkout@v3 to @v4

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

---------

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

.github/workflows/zoomin.yml

@@ -13,7 +13,7 @@ jobs:
     name: Create Zoomin bundle
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Copy zoomin properties
         run: |
@@ -27,7 +27,7 @@ jobs:
           docs/* mkdocs.yml custom.properties tags.yml
 
       - name: Upload documentation artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: nrf-connect-ble
           path: nrf-connect-ble.zip