🤖 bump alpine from 3.19 to 3.20

Bumps alpine from 3.19 to 3.20.

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

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

Dockerfile

@@ -4,7 +4,7 @@ COPY go.mod go.sum main.go ./
 RUN go mod tidy \
   && CGO_ENABLED=0 go build
 
-FROM alpine:3.19 as runtime
+FROM alpine:3.20 as runtime
 
 LABEL maintainer="natrontech"