Remove ignore rule for embedded-redis since we no longer use embedded-redis

.github/dependabot.yml

@@ -17,9 +17,6 @@ updates:
     # We can't update Micronaut past 4.8.3 until Cosmos supports Netty 4.2
     - dependency-name: "io.micronaut.platform:micronaut-parent"
       versions: "[4.9,)"
-    # embedded-redis updates currently require Redis 7, and this project uses Redis 6
-    - dependency-name: "org.signal:embedded-redis"
-      versions: "[0.9,)"
   groups:
     minor-java-dependencies:
       # Java: Only group minor and patch updates (we want to carefully review major updates)