Dockerfile(deps): Bump php from 71f45d5 to d9821c4

Bumps php from `71f45d5` to `d9821c4`.

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

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

Dockerfile

@@ -6,7 +6,7 @@ RUN composer install --no-dev --no-progress --no-interaction
 
 FROM sourcegraph/src-cli:5.2.0@sha256:52924bb68cb2324cb20e7f2d91fd8fab94d0587cb8bd064066e07b63eca7d3ba AS src-cli
 
-FROM php:8.2-cli-alpine3.17@sha256:71f45d57cef850a8da957925b86d163130ffaee26307d47d3054d2d3f89bbbd1
+FROM php:8.2-cli-alpine3.17@sha256:d9821c40b56e78f50b97bf9b0c11b5b3cead705f2dd3c7125eab9ae0f2464bae
 
 RUN echo 'memory_limit=2G' >> /usr/local/etc/php/conf.d/docker-php-memory-limit.ini;