Update php Docker tag to v8.4

| datasource | package | from | to  |
| ---------- | ------- | ---- | --- |
| docker     | php     | 8.2  | 8.4 |

Dockerfile

@@ -1,4 +1,4 @@
-FROM php:8.2-alpine as base
+FROM php:8.4-alpine as base
 
 ENV APPLICATION_MODE=prod
 WORKDIR /opt/chimera/sample-react