ext/pgsql: Fix preprocessor guard typo that silently disabled a feature

Fix `PQTRACE_SUPPRESS_TIMESTAMPS` guard misspelling in pgsql.stub.php.

The guard has been misspelled as `PQTRACE_SUPPPRESS_TIMESTAMPS`
(three P's) since 7ec8ae1, preventing the
`PGSQL_TRACE_SUPPRESS_TIMESTAMPS` constant from being registered.

close GH-21386

Author: KentarouTakeda

NEWS

@@ -9,6 +9,10 @@ PHP                                                                        NEWS
   . Fixed re-entrancy issue on php_pcre_match_impl, php_pcre_replace_impl,
     php_pcre_split_impl, and php_pcre_grep_impl. (David Carlier)
 
+- PGSQL:
+  . Fixed preprocessor silently guarding PGSQL_SUPPRESS_TIMESTAMPS support
+    due to a typo. (KentarouTakeda)
+    
 - Session:
   . Fix memory leak due to multiple exception happening during session abort.
     (arshidkv12)

ext/pgsql/pgsql.stub.php

@@ -432,7 +432,7 @@
      * @cvalue PGSQL_DML_STRING
      */
     const PGSQL_DML_STRING = UNKNOWN;
-#ifdef PQTRACE_SUPPPRESS_TIMESTAMPS
+#ifdef PQTRACE_SUPPRESS_TIMESTAMPS
     /**
      * @var int
      * @cvalue PQTRACE_SUPPRESS_TIMESTAMPS