refactor: create variable when we need it

Author: shvlv

InpsydeTemplates/Sniffs/Formatting/ShortEchoTagSniff.php

@@ -39,7 +39,6 @@ public function process(File $phpcsFile, $stackPtr): void
 
         /** @var array<int, Token> $tokens */
         $tokens = $phpcsFile->getTokens();
-        $currentLine = $tokens[$stackPtr]['line'];
 
         $prevPtr = $phpcsFile->findPrevious(
             Tokens::$emptyTokens,
@@ -53,6 +52,7 @@ public function process(File $phpcsFile, $stackPtr): void
         }
 
         $prevToken = $tokens[$prevPtr];
+        $currentLine = $tokens[$stackPtr]['line'];
 
         if ($prevToken['line'] !== $currentLine) {
             return;