ci: use PHP 7.4 for deployment preparation

.drone.yml

@@ -8,17 +8,17 @@ steps:
     commands:
       - composer install --ignore-platform-req=php
   - name: lint-php
-    image: composer:2
+    image: php:7.4
     commands:
       - ./vendor/bin/phpcs
     depends_on:
       - composer-install
   - name: node-install
-    image: node:14
+    image: node:16
     commands:
       - npm install
   - name: lint-assets
-    image: node:14
+    image: node:16
     commands:
       - npx eslint scripts/block.js
       - npx eslint scripts/liveticker.js

.github/workflows/wordpress-plugin-asset-update.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.0'
+          php-version: '7.4'
           tools: composer
       - name: Install
         run: composer install --no-interaction

.github/workflows/wordpress-plugin-deploy.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.0'
+          php-version: '7.4'
           tools: composer
       - name: Install
         run: composer install --no-interaction