Update kafka-ingestion.md to clarify PasswordProvider support limitation (#11374)

Co-authored-by: Clint Wylie <cjwylie@gmail.com>

Co-authored-by: Clint Wylie <cjwylie@gmail.com>
diff --git a/docs/development/extensions-core/kafka-ingestion.md b/docs/development/extensions-core/kafka-ingestion.md
index 541c148..52b751e 100644
--- a/docs/development/extensions-core/kafka-ingestion.md
+++ b/docs/development/extensions-core/kafka-ingestion.md
@@ -268,7 +268,7 @@
 `druid.dynamic.config.provider`=`{"type": "<registered_dynamic_config_provider_name>", ...}`
 in consumerProperties map.
 
-Note: In 0.20.0 or older Druid versions, for SSL connections, the `keystore`, `truststore` and `key` passwords can also be provided as a [Password Provider](../../operations/password-provider.md). This is deprecated.
+Note: SSL connections may also be supplied using the deprecated [Password Provider](../../operations/password-provider.md) interface to define the `keystore`, `truststore`, and `key`. This functionality might be removed in a future release.
 
 #### Specifying data format