Bump alpine from 3.16.1 to 3.16.2 in /docker

Bumps alpine from 3.16.1 to 3.16.2.

---
updated-dependencies:
- dependency-name: alpine
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

docker/Dockerfile

@@ -6,7 +6,7 @@ FROM thanosio/thanos:v0.28.0 AS thanos
 FROM philipssoftware/variant:v0.2.1 AS variant
 
 ## Build final image
-FROM alpine:3.16.1
+FROM alpine:3.16.2
 LABEL maintainer="andy.lo-a-foe@philips.com"
 RUN apk add --no-cache supervisor jq curl && rm -rf /tmp/* /var/cache/apk/*
 RUN apk add --no-cache yq --repository http://dl-cdn.alpinelinux.org/alpine/edge/community