Bump alpine from 3.18.0 to 3.18.3 in /docker

Bumps alpine from 3.18.0 to 3.18.3.

---
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

@@ -12,7 +12,7 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=$GOARCH go build -o /sd
 
 
 ## Build final image
-FROM alpine:3.18.0
+FROM alpine:3.18.3
 LABEL maintainer="andy.lo-a-foe@philips.com"
 RUN apk add --no-cache ca-certificates supervisor jq curl && rm -rf /tmp/* /var/cache/apk/*