build(deps): bump alpine from 3.17.3 to 3.18.2

Bumps alpine from 3.17.3 to 3.18.2.

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

Signed-off-by: dependabot[bot] <[email protected]>

Dockerfile

@@ -24,7 +24,7 @@ COPY ./internal/ ./internal/
 RUN go build -o wg-access-server
 
 ### Server
-FROM alpine:3.17.3
+FROM alpine:3.18.2
 RUN apk add --no-cache iptables ip6tables wireguard-tools curl
 ENV WG_CONFIG="/config.yaml"
 ENV WG_STORAGE="sqlite3:///data/db.sqlite3"