Bump alpine from 3.16.0 to 3.16.1 in /docker

Bumps alpine from 3.16.0 to 3.16.1.

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

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

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.16.0
+FROM alpine:3.16.1
 
 RUN apk add --no-cache gettext curl nginx php8 php8-fpm php8-opcache php8-pdo php8-pdo_sqlite php8-openssl && \
     mkdir /var/www/html