MQE-2729: [PHP 8] Investigate and fix code related to changes in implode()

Author: okolesnyk

.github/workflows/main.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.3', '7.4']
+        php-versions: ['7.3', '7.4', '8.0']
     steps:
       - uses: actions/checkout@v2
 
@@ -54,7 +54,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.3', '7.4']
+        php-versions: ['7.3', '7.4', '8.0']
     steps:
       - uses: actions/checkout@v2
 
@@ -86,7 +86,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.3', '7.4']
+        php-versions: ['7.3', '7.4', '8.0']
     steps:
       - uses: actions/checkout@v2
 
@@ -118,7 +118,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.3', '7.4']
+        php-versions: ['7.3', '7.4', '8.0']
 
     services:
       chrome:

composer.json

@@ -9,7 +9,7 @@
         "sort-packages": true
     },
     "require": {
-        "php": "^7.3",
+        "php": ">7.3",
         "ext-curl": "*",
         "ext-dom": "*",
         "ext-intl": "*",