Update php to version 8.1

Dockerfile

@@ -1,4 +1,4 @@
-FROM php:7.4-apache
+FROM php:8.1.28-apache-bullseye
 LABEL maintainer="Andy Miller <[email protected]> (@rhukster)"
 
 # Enable Apache Rewrite + Expires Module
@@ -44,7 +44,7 @@ RUN { \
     } > /usr/local/etc/php/conf.d/php-recommended.ini
 
 RUN pecl install apcu \
-    && pecl install yaml-2.0.4 \
+    && pecl install yaml-2.2.3 \
     && docker-php-ext-enable apcu yaml
 
 # Set user to www-data

README.md

@@ -2,13 +2,13 @@
 
 This currently is pretty minimal and uses:
 
-* apache-2.4.38
+* apache-2.4.56
 * GD library
 * Unzip library
-* php7.4
-* php7.4-opcache
-* php7.4-acpu
-* php7.4-yaml
+* php8.1
+* php8.1-opcache
+* php8.1-acpu
+* php8.1-yaml
 * cron
 * vim editor