Use PHP 8.2 for builds and fixed warning in email validation rule

docker/Dockerfile

@@ -38,7 +38,7 @@ COPY --from=themes /app/public/assets /app/public/assets/
 RUN find /app/storage/ -type f -not -name VERSION -exec rm {} \;
 
 # Build the PHP/Nginx container
-FROM php:8.1-fpm-alpine
+FROM php:8.2-fpm-alpine
 WORKDIR /var/www
 RUN apk add --no-cache icu-dev nginx && \
     docker-php-ext-install intl pdo_mysql && \

docker/dev/Dockerfile

@@ -1,5 +1,5 @@
 # Engelsystem PHP FPM/Nginx development image including Xdebug
-FROM php:8.1-fpm-alpine AS es_base
+FROM php:8.2-fpm-alpine AS es_base
 WORKDIR /var/www
 RUN apk add --no-cache icu-dev linux-headers $PHPIZE_DEPS && \
     pecl install pcov xdebug && \

src/Http/Validation/Rules/Email.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace Engelsystem\Http\Validation\Rules;
+
+use Egulias\EmailValidator\EmailValidator;
+use Respect\Validation\Rules\Email as RespectEmail;
+
+class Email extends RespectEmail
+{
+    // Fix for "Creation of dynamic property $emailValidator is deprecated" warning in PHP 8.2
+    public ?EmailValidator $emailValidator;
+}