build(deps): Bump php (#23)

Bumps php from 8.2-fpm-alpine to 8.5-fpm-alpine.

---
updated-dependencies:
- dependency-name: php
  dependency-version: 8.5-fpm-alpine
  dependency-type: direct:production
...

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Author: dependabot[bot]

cloudformation/scenarios/localgov-drupal/docker/Dockerfile

@@ -7,7 +7,7 @@
 # =============================================================================
 # Stage 1: Builder - Install Composer dependencies
 # =============================================================================
-FROM php:8.2-fpm-alpine AS builder
+FROM php:8.5-fpm-alpine AS builder
 
 # Install build dependencies
 RUN apk add --no-cache \
@@ -62,7 +62,7 @@ RUN mkdir -p /var/www/drupal/web/libraries/dropzone \
 # =============================================================================
 # Stage 2: Runtime - Minimal production image
 # =============================================================================
-FROM php:8.2-fpm-alpine AS runtime
+FROM php:8.5-fpm-alpine AS runtime
 
 # Install runtime dependencies
 RUN apk add --no-cache \