chore(splunk): update image docker.io/splunk/splunk digest to 77183a6 (#47940)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/splunk/splunk | digest | `aa019c3` → `77183a6` |

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charts/stable/splunk/Chart.yaml

@@ -37,5 +37,5 @@ sources:
   - https://hub.docker.com/r/splunk/splunk
   - https://splunk.github.io/docker-splunk
 type: application
-version: 13.2.0
+version: 13.2.1
 

charts/stable/splunk/values.yaml

@@ -2,7 +2,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: docker.io/splunk/splunk
-  tag: 10.2.3@sha256:aa019c389edc50ffe3d6ccf1f9a6be15fcfa66f7d6ab436ed2371871eb4d3964
+  tag: 10.2.3@sha256:77183a6c0c616d736aa2538e3dbacfe8fe3a1950ea174c70c4402e70d4159ae8
 securityContext:
   container:
     runAsNonRoot: false