Upgrade development basement (Docker-setup, Workflows, composer.json, Tests) (#163)

* Simplified Docker-setup (local development)

Upgraded PHP, use MariaDB (LTS)

* Use PHPUnit 12 from now on (v9 before)

adapted a few files to solve PHPUnit related issues

* Removed many workflows; left only a mysql:lts and mariadb:lts

* fixed coding style issues

* Attempts to fix failing workflow

* Use MariaDB own healthcheck script

* Dont run workflows twice

* Refined README.md

Author: k00ni

.github/workflows/coding-styles.yml

@@ -1,6 +1,6 @@
 name: "Coding Styles"
 
-on: [push, pull_request]
+on: push
 
 jobs:
     tests:
@@ -11,7 +11,7 @@ jobs:
             fail-fast: true
             matrix:
                 php:
-                    - 8.2
+                    - 8.4
 
         steps:
             -   name: Checkout

.github/workflows/mariadb-10.10.yml

@@ -1,40 +1,41 @@
-name: MySQL 5.5 Tests
+name: MariaDB LTS Tests
 
-on: [push, pull_request]
+on: push
 
 jobs:
     pdo-mysql:
-        name: MySQL 5.5 Tests - PHP ${{ matrix.php }} PDO mysql
+        name: MariaDB LTS Tests - PHP ${{ matrix.php }} PDO mysql
         runs-on: ubuntu-latest
 
         env:
             DB_ADAPTER: pdo
             DB_PDO_PROTOCOL: mysql
 
         strategy:
-            # if one of the matrix-entries break, all entries getting canceled.
-            fail-fast: true
+            fail-fast: false
             matrix:
                 php:
-                    - 8.0
-                    - 8.1
-                    - 8.2
-                    - 8.3
+                    - 8.4
+                    - 8.5
 
         services:
             testdb:
-                image: mysql:5.5
+                image: mariadb:lts
                 env:
                     MYSQL_ROOT_PASSWORD: Pass123
                     MYSQL_DATABASE: arc2_test
                     MYSQL_ALLOW_EMPTY_PASSWORD: false
                 ports:
-                    - 3306
-                options: --health-cmd="mysqladmin ping" --health-interval=15s --health-timeout=3s --health-retries=4
+                    - 3306:3306
+                options: >-
+                  --health-cmd="healthcheck.sh --connect --innodb_initialized"
+                  --health-interval=10s
+                  --health-timeout=5s
+                  --health-retries=3
 
         steps:
             -   name: Checkout
-                uses: actions/checkout@v2
+                uses: actions/checkout@v4
 
             -   name: Install PHP
                 uses: shivammathur/setup-php@v2