build(deps): bump library/alpine-3 from 3876b09 to 1e1dfdf (#2473)

Bumps library/alpine-3 from `3876b09` to `1e1dfdf`.

---
updated-dependencies:
- dependency-name: library/alpine-3
  dependency-type: direct:production
...

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.opensource.zalan.do/library/alpine-3:latest@sha256:3876b0971fe135f9ec92370025be828d55b411e2fc7c57691176ca02931647b3
+FROM registry.opensource.zalan.do/library/alpine-3:latest@sha256:1e1dfdf788f9f3e5b37626389d830e6bbd98c68dd5e43031102291363316cbbc
 LABEL maintainer="Team Gateway&Proxy @ Zalando SE <team-gwproxy@zalando.de>"
 
 ADD skipper /usr/bin/