chore(deps): bump alpine from 3.21 to 3.22 in the docker group

Bumps the docker group with 1 update: alpine.


Updates `alpine` from 3.21 to 3.22

---
updated-dependencies:
- dependency-name: alpine
  dependency-version: '3.22'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: docker
...

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

Author: dependabot[bot]

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM alpine:3.21 AS builder
+FROM alpine:3.22 AS builder
 
 
 LABEL org.opencontainers.image.source=https://github.com/altertek/docker-ooni-probe
@@ -18,7 +18,7 @@ RUN apk add --no-cache wget \
 	"https://github.com/ooni/probe-cli/releases/download/$PROBEVERSION/ooniprobe-$ARCH" \
     && chmod +x /root/probe.bin
 
-FROM alpine:3.21
+FROM alpine:3.22
 
 ARG USER=default
 ENV HOME=/home/$USER