Install RedPanda in CI.

Author: ryzhyk

.github/workflows/main.yml

@@ -81,6 +81,12 @@ jobs:
         # Don't cache on Windows due to low disk space
         if: runner.os != 'Windows'
 
+      - name: Start redpanda
+        if: runner.os == 'Linux'
+        uses: redpanda-data/[email protected]
+        with:
+          version: "latest"
+
       # We split building the tests into a separate step
       # so that we can easily distinguish between build
       # errors and failing tests