build(deps): update golang docker tag to v1.21.6

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
keptn-contrib · Jan 16, 2024 · 0420ddb · 0420ddb
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diff --git a/Dockerfile b/Dockerfile
@@ -1,7 +1,7 @@
 # Use the offical Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang:1.18.3-alpine as builder
+FROM golang:1.21.6-alpine as builder
 
 RUN apk add --no-cache gcc libc-dev git
 

diff --git a/initcontainer.Dockerfile b/initcontainer.Dockerfile
@@ -1,7 +1,7 @@
 # Use the offical Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang:1.17.5-alpine as builder
+FROM golang:1.21.6-alpine as builder
 
 RUN apk add --no-cache gcc libc-dev git