Blockbase + co: Update minimum PHP version

blockbase/style.css

@@ -6,10 +6,10 @@ Author URI: https://automattic.com/
 Description: Blockbase is a simple theme that supports full-site editing. It comes with a set of minimal templates and design settings that can be manipulated through Global Styles. Use it to build something beautiful.
 Requires at least: 5.7
 Tested up to: 5.7
-Requires PHP: 5.7
+Requires PHP: 7.3
 Version: 1.1.0
 License: GNU General Public License v2 or later
-License URI: https://raw.githubusercontent.com/Automattic/themes/trunk/LICENSE 
+License URI: https://raw.githubusercontent.com/Automattic/themes/trunk/LICENSE
 Text Domain: blockbase
 Tags: one-column, custom-colors, custom-menu, custom-logo, editor-style, featured-images, full-site-editing, rtl-language-support, theme-options, threaded-comments, translation-ready, wide-blocks
 

mayland-blocks/style.css

@@ -6,7 +6,7 @@ Author URI: https://automattic.com/
 Description: Make your online portfolio wonderfully uncluttered with Mayland. Gracefully highlight your photography and other projects. Mayland is versatile enough to be your personal site too.
 Requires at least: 5.7
 Tested up to: 5.7
-Requires PHP: 7.4
+Requires PHP: 7.3
 Version: 2.1.0
 License: GNU General Public License v2 or later
 License URI: https://raw.githubusercontent.com/Automattic/themes/trunk/LICENSE

quadrat/style.css

@@ -6,7 +6,7 @@ Author URI: https://automattic.com/
 Description: Quadrat is a simple, versatile WordPress theme, designed for blogs and podcasts. Inspired by squared shapes and colourful, minimalist flat illustrations, Quadrat bundles a set of images you can use on your site with the theme’s default color palette. Quadrat’s default styles are bold and playful, relying on a simple sans-serif font and a strong color scheme that you can customize.
 Requires at least: 5.7
 Tested up to: 5.7
-Requires PHP: 5.7
+Requires PHP: 7.3
 Version: 1.1.0
 License: GNU General Public License v2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html