Bump alpine from 3.18.0 to 3.18.2 (#179)

Bumps alpine from 3.18.0 to 3.18.2.

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile

@@ -22,7 +22,7 @@ COPY lib lib
 RUN mix do compile, release
 
 # prepare release image
-FROM alpine:3.18.0 AS app
+FROM alpine:3.18.2 AS app
 RUN apk add --no-cache openssl ncurses-libs
 WORKDIR /app
 RUN chown nobody:nobody /app