fix missing incomplete type for preg_match

Author: frederikbosch

src/EmailAddress.php

@@ -36,6 +36,7 @@ public function __construct(string $address)
             throw new \InvalidArgumentException('Invalid e-mail address: ' . $address);
         }
 
+        /** @var array{0: non-empty-string, 1: non-empty-string, 2: non-empty-string} $matches */
         [$this->address, $this->localPart, $this->domain] = $matches;
     }
 

src/Protocol/Imap/Response/CompletionResult.php

@@ -77,6 +77,7 @@ public static function fromLine(string $line): self
             return new self($line);
         }
 
+        /** @var array{0: non-empty-string, 1: non-empty-string} $matches */
         return new self($matches[1]);
     }