feat: add Laravel 11/12 and PHP 8.3+ support

- Widen illuminate/* deps to ^10.0|^11.0|^12.0, require PHP ^8.3
- Upgrade PHPUnit to ^10.5|^11.0, Mockery to ^1.6
- Rewrite phpunit.xml.dist for PHPUnit 10+ format (source/include
  replaces filter/whitelist, removed deprecated attributes)
- Replace $dates with $casts on Token model
- Implement DeferrableProvider interface instead of $defer property
  on ClientServiceProvider
- Use FQCN route definitions instead of string-based namespace()
- Fix migration getColumnType() check for Laravel 11+ native types
- Replace @test doc annotations with #[Test] attributes
- Fix dynamic property deprecation in ControllerTest

phpunit.xml.dist

@@ -8,15 +8,11 @@
 -->
 
 <phpunit backupGlobals="false"
-         backupStaticAttributes="false"
+         backupStaticProperties="false"
          bootstrap="vendor/autoload.php"
          colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
          processIsolation="false"
-         stopOnFailure="false"
-         verbose="true">
+         stopOnFailure="false">
 
     <testsuites>
         <testsuite name="Wearepixel's Laravel QuickBooks Client">
@@ -28,26 +24,13 @@
         <!-- <env name="VARIABLE" value="value"/> -->
     </php>
 
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
+    <source>
+        <include>
             <directory suffix=".php">./src</directory>
-            <exclude>
-                <directory>./src/Http/Exceptions</directory>
-                <directory>./src/Providers</directory>
-            </exclude>
-        </whitelist>
-    </filter>
-
-    <logging>
-        <log type="coverage-html"
-             target="./build/phpunit/coverage"
-             lowUpperBound="35"
-             highLowerBound="70"/>
-        <log type="coverage-text"
-             target="php://stdout"
-             showOnlySummary="true"
-             showUncoveredFiles="false"/>
-        <log type="coverage-clover" target="build/phpunit/logs/clover.xml"/>
-        <log type="junit" target="./build/phpunit/logs/junit.xml"/>
-    </logging>
+        </include>
+        <exclude>
+            <directory>./src/Http/Exceptions</directory>
+            <directory>./src/Providers</directory>
+        </exclude>
+    </source>
 </phpunit>