Fix: Resolving conflict and Changed the return type with phpstan.

Author: kai890707

system/Debug/Exceptions.php

@@ -100,6 +100,7 @@ public function __construct(ExceptionsConfig $config, $request, ResponseInterfac
  * @codeCoverageIgnore
  *
  * @return void
+ * @phpstan-return never|void
  */
  public function initialize()
  {
@@ -116,6 +117,7 @@ public function initialize()
  * @codeCoverageIgnore
  *
  * @return void
+ * @phpstan-return never|void
  */
  public function exceptionHandler(Throwable $exception)
  {
@@ -195,6 +197,7 @@ public function errorHandler(int $severity, string $message, ?string $file = nul
  * @codeCoverageIgnore
  *
  * @return void
+ * @phpstan-return never|void
  */
  public function shutdownHandler()
  {
@@ -251,6 +254,7 @@ protected function determineView(Throwable $exception, string $templatePath): st
  * Given an exception and status code will display the error to the client.
  *
  * @return void
+ * @phpstan-return never|void
  */
  protected function render(Throwable $exception, int $statusCode)
  {

system/Debug/Timer.php

@@ -132,7 +132,7 @@ public function has(string $name): bool
  * Returns its return value if any.
  *
  * @param string $name The name of the timer
- * @phpstan-param callable():mixed $callable callable to be executed
+ * @phpstan-param callable(): mixed $callable callable to be executed
  *
  * @return array|bool|float|int|object|resource|string|null
  */

system/Debug/Toolbar.php

@@ -350,6 +350,7 @@ protected function roundTo(float $number, int $increments = 5): float
  * @param ResponseInterface $response
  *
  * @return void
+ * @phpstan-return never|void
  */
  public function prepare(?RequestInterface $request = null, ?ResponseInterface $response = null)
  {