chore(deps): bump alpine from 3.18.2 to 3.18.3 (#291)

Bumps alpine from 3.18.2 to 3.18.3.

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

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

Dockerfile

@@ -7,7 +7,7 @@ RUN go mod download
 RUN go build ./cmd/notify
 
 # Release
-FROM alpine:3.18.2
+FROM alpine:3.18.3
 RUN apk -U upgrade --no-cache \
     && apk add --no-cache bind-tools ca-certificates
 COPY --from=builder /app/notify /usr/local/bin/