chore(helm): update image docker.io/pepperlabs/peppermint digest to b660716 (#28934)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/pepperlabs/peppermint | digest | `571b8fa` -> `b660716` |

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charts/incubator/peppermint/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/incubator/peppermint
   - https://hub.docker.com/r/pepperlabs/peppermint
 type: application
-version: 2.2.17
+version: 2.2.18

charts/incubator/peppermint/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: docker.io/pepperlabs/peppermint
   pullPolicy: IfNotPresent
-  tag: latest@sha256:571b8fabf9157c8400915e5b17256b5c61531b3d33469d2de38037baca6e31fd
+  tag: latest@sha256:b6607165cfb3e6b97232f92338092826c22274f6fe744e0b2cd1fa044777cbba
 
 securityContext:
   container: