⬆️ [kafdrop] Upgrade App Image Version

This change will bump the version of the kafdrop image.

It includes numerous Dependency updates as well as bugfixes, and
security patching.

Also includes some shiny new features such as:

- Added Message Search functionality
[#288](obsidiandynamics/kafdrop#288)
- Enabled dependabot to update deps and base image tag
[#404](obsidiandynamics/kafdrop#404)

**Breaking Changes**:

- Update to JDK 17 and SpringBoot 3 in upstream
[#482](obsidiandynamics/kafdrop#482)

For the complete list of changes see:

[Releases](https://github.com/obsidiandynamics/kafdrop/releases)

[Comparing
Changes](obsidiandynamics/kafdrop@3.30.0...4.0.1)

stable/kafdrop/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v2
-appVersion: 3.30.0
+appVersion: 4.0.1
 description: A Helm chart for Kafdrop
 name: kafdrop
-version: 0.2.1
+version: 1.0.0

stable/kafdrop/values.yaml

@@ -5,7 +5,7 @@ image:
   # -- Kafdrop image repository.
   repository: obsidiandynamics/kafdrop
   # -- Kafdrop image version.
-  tag: 3.30.0
+  tag: 4.0.1
   # -- Kafdrop image pull policy.
   pullPolicy: IfNotPresent