build(deps): bump actions/download-artifact in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

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

.github/workflows/ci.yml

@@ -86,7 +86,7 @@ jobs:
         # Block until Kafka is ready
         $HOME/bin/kafkacat -L -b 127.0.0.1:9092 -t __consumer_offsets -m 20 -q > /dev/null
 
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: librdkafka.so
         path: ext/
@@ -144,7 +144,7 @@ jobs:
         # Block until Kafka is ready
         $HOME/bin/kafkacat -L -b 127.0.0.1:9092 -t __consumer_offsets -m 20 -q > /dev/null
 
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: librdkafka.so
         path: ext/
@@ -193,7 +193,7 @@ jobs:
         # Block until Kafka is ready
         $HOME/bin/kafkacat -L -b 127.0.0.1:9092 -t __consumer_offsets -m 20 -q > /dev/null
 
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4.1.7
       with:
         name: librdkafka.so
         path: ext/