chore(deps): update emeraldpay/dshackle docker tag to v0.15.2

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

charts-private/dshackle/values.yaml

@@ -14,7 +14,7 @@ image:
   repository: emeraldpay/dshackle
   pullPolicy: IfNotPresent
   # Overrides the image tag whose default is the chart appVersion.
-  tag: "0.15.1"
+  tag: "0.15.2"
 
 # -- Image pull secrets
 imagePullSecrets: []