feat(deps): update celo dependencies

| datasource | package                 | from  | to    |
| ---------- | ----------------------- | ----- | ----- |
| docker     | us.gcr.io/celo-org/geth | 1.8.5 | 1.8.7 |

charts/celo/Chart.yaml

@@ -22,4 +22,4 @@ version: 0.1.7
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
 # renovate: image=us.gcr.io/celo-org/geth
-appVersion: "1.8.5"
+appVersion: "1.8.7"

charts/celo/README.md

@@ -2,7 +2,7 @@
 
 Deploy and scale [Celo](https://github.com/celo-org/celo-blockchain) Nodes inside Kubernetes with ease
 
-[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) ![Version: 0.1.7](https://img.shields.io/badge/Version-0.1.7-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.8.5](https://img.shields.io/badge/AppVersion-1.8.5-informational?style=flat-square)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) ![Version: 0.1.7](https://img.shields.io/badge/Version-0.1.7-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.8.7](https://img.shields.io/badge/AppVersion-1.8.7-informational?style=flat-square)
 
 ## Features