docker: bump php from 8.2.8-cli-alpine to 8.2.9-cli-alpine

Bumps php from 8.2.8-cli-alpine to 8.2.9-cli-alpine.

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

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM php:8.2.8-cli-alpine
+FROM php:8.2.9-cli-alpine
 
 RUN apk update && apk add git make