CircleCI: Upgrade Grafana build image (#25624)

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

.circleci/config.yml

@@ -35,13 +35,13 @@ executors:
       - image: cimg/base:stable
   node:
     docker:
-      - image: cimg/node:12.16
+      - image: cimg/node:12.18
   go:
     docker:
       - image: cimg/go:1.14
   grafana-build:
     docker:
-      - image: grafana/build-container:1.2.19
+      - image: grafana/build-container:1.2.20
   grafana-publish:
     docker:
       - image: grafana/grafana-ci-deploy:1.2.5

scripts/build/ci-build/build-deploy.sh

 #!/bin/bash
 set -eo pipefail
 
-_version="1.2.19"
+_version="1.2.20"
 _tag="grafana/build-container:${_version}"
 
 _dpath=$(dirname "${BASH_SOURCE[0]}")