Merge pull request #92 from privateseabass/master

PHP 7.4 support for future Debian versions

defaults/php7.4_env.yml

+---
+# [system]
+# system_configuration for php 7.4:
+php_dir: "/etc/php/7.4"
+php_bin: "php-fpm7.4"
+php_pkg_apcu: "php-apcu"
+php_pkg_spe:
+  - "php-imap"
+  - "php-imagick"
+  - "php-redis"
+  - "php7.4-xml"
+  - "php7.4-zip"
+  - "php7.4-mbstring"
+php_socket: "/run/php/php7.4-fpm.sock"

vars/Debian-bullseye.yml

+---
+php_ver: 7.4

vars/Debian-sid.yml

+Debian-testing.yml
\ No newline at end of file

vars/Debian-testing.yml

+---
+php_ver: 7.4