Switched all services to `eclipse-temurin:21-jre`

[demos/kafka/wordcount] / recorder

diff --git a/recorder b/recorder
index 5d2525d..3a77a50 160000 (submodule)
--- a/recorder
+++ b/recorder
@@ -1 +1 @@
-Subproject commit 5d2525da0fc5ca061d7361cce5614ac53c1867eb
+Subproject commit 3a77a501fb93403b6048df4e89c0ba515ac02242