Fix doc errors found by PHPStan

src/main/php/libAllure/Database.php

@@ -31,7 +31,7 @@ class Database extends \PDO
     public $queryCount = 0;
 
     /**
-    @throws PDOException if it cannot connect
+    @throws \PDOException if it cannot connect
     */
     public function __construct($dsn, $username, $password)
     {

src/main/php/libAllure/ErrorHandler.php

@@ -29,10 +29,10 @@ class ErrorHandler
     /**
      * Constructs the new class.
      *
-     * @param greedy Whether or not this class can be greedy: is allowed to
+     * @param $greedy Whether or not this class can be greedy: is allowed to
      * capture all types of errors that it can bind to.
      */
-    public function __construct($greedy = true)
+    public function __construct(bool $greedy = true)
     {
         if ($greedy) {
             $this->beGreedy();
@@ -63,12 +63,12 @@ protected function clearOutputBuffers()
     /**
      * Print the error out.
      *
-     * @param trigger What triggored this error.
-     * @param message The message for the error.
-     * @param code The code for the error.
-     * @param file The file that this error came from.
-     * @param line The line that this error came from.
-     * @param stacktrace A stacktrace leading up to this error ( should be a
+     * @param $trigger What triggored this error.
+     * @param $message The message for the error.
+     * @param $code The code for the error.
+     * @param $file The file that this error came from.
+     * @param $line The line that this error came from.
+     * @param $stacktrace A stacktrace leading up to this error ( should be a
      * array).
      */
     protected function render($trigger, $message, $code = null, $file = null, $line = null, $stacktrace = null)

src/main/php/libAllure/QueryBuilder.php

@@ -304,7 +304,7 @@ public function buildGroup()
 
     /**
      * Builds the actual SQL.
-     * @return Cake asdf
+     * @return string The SQL string.
      */
     public function build(): string
     {