fix: Bump base php image

it will also force an update of the minio client, which actually breaks
the website with:

website_1              | Successfully applied new settings.
website_1              | Please restart your server 'mc admin service restart minio'.
website_1              | mc: <ERROR> Unable to restart the server. process actions are not supported via this API anymore, please upgrade 'mc' or madmin-go to use ServiceV2() API.
website_1              | mc: <ERROR> Unable to get server '[notify_webhook:picture-uploaded]' config: there is no target `picture-uploaded` for subsystem `notify_webhook`.
website_1              | mc: <ERROR> Unable to get server '[notify_webhook:pictures-processor-downloader-uploaded]' config: there is no target `pictures-processor-downloader-uploaded` for subsystem `notify_webhook`.
website_1              | mc: <ERROR> Unable to get server '[notify_webhook:pictures-processor-uploader-uploaded]' config: there is no target `pictures-processor-uploader-uploaded` for subsystem `notify_webhook`.
website_1              | mc: <ERROR> Unable to enable notification on the specified bucket. A specified destination ARN does not exist or is not well-formed. Verify the destination ARN.
website_1              | mc: <ERROR> Unable to enable notification on the specified bucket. A specified destination ARN does not exist or is not well-formed. Verify the destination ARN.
website_1              | mc: <ERROR> Unable to enable notification on the specified bucket. A specified destination ARN does not exist or is not well-formed. Verify the destination ARN.
website_1              | mc: <ERROR> Unable to enable notification on the specified bucket. A specified destination ARN does not exist or is not well-formed. Verify the destination ARN.
website_1              | mc: <ERROR> Unable to enable notification on the specified bucket. A specified destination ARN does not exist or is not well-formed. Verify the destination ARN.
website_1              | make: *** [Makefile:50: buckets] Error 1
gk_website_1 exited with code 2

Dockerfile

@@ -1,4 +1,4 @@
-FROM php:8.2.14-fpm-bullseye
+FROM php:8.2.15-fpm-bullseye
 
 LABEL maintainer="GeoKrety Team <[email protected]>"