chore(deps): update alpine:3.20 docker digest to 780405d

Dockerfile

 # renovate: datasource=docker depName=docker.io/alpine
-ARG IMAGE_TAG=3.20@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+ARG IMAGE_TAG=3.20@sha256:780405de0f7cf99f985dd5a4f04dfc5aae71509d89505c1ba48a88d95a0ceb7f
 FROM alpine:${IMAGE_TAG}
 
 # renovate: datasource=repology depName=alpine_3_20/bash versioning=semver-coerced