Last phpstan fixes

src/Monolog/Formatter/NormalizerFormatter.php

@@ -172,11 +172,14 @@ class NormalizerFormatter implements FormatterInterface
             }
 
             if ($data instanceof \JsonSerializable) {
+                /** @var null|scalar|array<array|scalar|null> $value */
                 $value = $data->jsonSerialize();
             } elseif (method_exists($data, '__toString')) {
+                /** @var string $value */
                 $value = $data->__toString();
             } else {
                 // the rest is normalized by json encoding and decoding it
+                /** @var null|scalar|array<array|scalar|null> $value */
                 $value = json_decode($this->toJson($data, true), true);
             }
 

src/Monolog/Handler/FirePHPHandler.php

@@ -74,8 +74,6 @@ class FirePHPHandler extends AbstractProcessingHandler
     {
         $header = sprintf('%s-%s', static::HEADER_PREFIX, join('-', $meta));
 
-        // See https://github.com/phpstan/phpstan/issues/5219
-        // @phpstan-ignore-next-line
         return [$header => $message];
     }
 

src/Monolog/Logger.php

@@ -436,7 +436,6 @@ class Logger implements LoggerInterface, ResettableInterface
             throw new InvalidArgumentException('Level "'.var_export($level, true).'" is not defined, use one of: '.implode(', ', array_keys(static::$levels) + static::$levels));
         }
 
-        /** @phpstan-ignore-next-line */
         return $level;
     }