fix: Revert PSR12 quote back to original (with typo)

After some review (https://github.com/PHPCSStandards/PHP_CodeSniffer/pull/464/files#r1578535096) we came to the conclusion to keep this typo in favor of being the same as the quote source.

src/Standards/PSR12/ruleset.xml

@@ -105,7 +105,7 @@
     <!-- checked by PSR12.Namespaces.CompoundNamespaceDepth -->
 
     <!-- When wishing to declare strict types in files containing markup outside PHP opening and closing tags, the declaration MUST be on the first line of the file and include an opening PHP tag, the strict types declaration and closing tag. -->
-    <!-- Declare statements MUST contain no spaces and MUST be exactly declare(strict_types=1) (with an optional semicolon terminator). -->
+    <!-- Declare statements MUST contain no spaces and MUST be exactly declare(strict_types=1) (with an optional semi-colon terminator). -->
     <!-- Block declare statements are allowed and MUST be formatted as below. -->
     <!-- checked by PSR12.Files.DeclareStatement -->