Bump alpine from 0a4eaa0 to beefdbd

Bumps alpine from `0a4eaa0` to `beefdbd`.

---
updated-dependencies:
- dependency-name: alpine
  dependency-type: direct:production
...

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

Dockerfile

@@ -15,7 +15,7 @@ ENV GOOS linux
 RUN go build -a -installsuffix cgo -ldflags '-w  -extldflags "-static"' -o /go/bin/slack-notify main.go
 
 # alpine:latest as of 2024-03-11
-FROM alpine@sha256:0a4eaa0eecf5f8c050e5bba433f58c052be7587ee8af3e8b3910ef9ab5fbe9f5
+FROM alpine@sha256:beefdbd8a1da6d2915566fde36db9db0b524eb737fc57cd1367effd16dc0d06d
 
 COPY --from=builder /go/bin/slack-notify /usr/bin/slack-notify