ci: update redis test images (#2035)

Author: PavelPashov

.github/workflows/test_with_cov.yml

@@ -8,7 +8,7 @@ jobs:
       fail-fast: false
       matrix:
         node: [20.x, 22.x, 24.x]
-        redis: ["rs-7.4.0-v1", "8.0.2", "8.2"]
+        redis: ["rs-7.4.0-v1", "8.2", "8.4-RC1-pre"]
     steps:
       - name: Git checkout
         uses: actions/checkout@v2