Fix date createFromTimestamp test

Unfortuantely, PHP_INT_MIN cannot be expressed as a literal in PHP, because -NUM
is parsed as (-)(NUM). NUM is restricted to PHP_INT_MAX.

Author: iluuu1994

ext/date/tests/createFromTimestamp.phpt

@@ -9,7 +9,7 @@ class MyDateTime extends DateTime {};
 class MyDateTimeImmutable extends DateTimeImmutable {};
 
 define('MAX_32BIT', 2147483647);
-define('MIN_32BIT', -2147483648);
+define('MIN_32BIT', -2147483647);
 
 $timestamps = array(
     1696883232,
@@ -223,33 +223,33 @@ DateTimeImmutable::createFromTimestamp(2147483647): object(DateTimeImmutable)#%d
   ["timezone"]=>
   string(6) "+00:00"
 }
-DateTime::createFromTimestamp(-2147483648): object(DateTime)#%d (3) {
+DateTime::createFromTimestamp(-2147483647): object(DateTime)#%d (3) {
   ["date"]=>
-  string(26) "1901-12-13 20:45:52.000000"
+  string(26) "1901-12-13 20:45:53.000000"
   ["timezone_type"]=>
   int(1)
   ["timezone"]=>
   string(6) "+00:00"
 }
-DateTimeImmutable::createFromTimestamp(-2147483648): object(DateTimeImmutable)#%d (3) {
+DateTimeImmutable::createFromTimestamp(-2147483647): object(DateTimeImmutable)#%d (3) {
   ["date"]=>
-  string(26) "1901-12-13 20:45:52.000000"
+  string(26) "1901-12-13 20:45:53.000000"
   ["timezone_type"]=>
   int(1)
   ["timezone"]=>
   string(6) "+00:00"
 }
-DateTime::createFromTimestamp(-2147483648.5): object(DateTime)#%d (3) {
+DateTime::createFromTimestamp(-2147483647.5): object(DateTime)#%d (3) {
   ["date"]=>
-  string(26) "1901-12-13 20:45:51.500000"
+  string(26) "1901-12-13 20:45:52.500000"
   ["timezone_type"]=>
   int(1)
   ["timezone"]=>
   string(6) "+00:00"
 }
-DateTimeImmutable::createFromTimestamp(-2147483648.5): object(DateTimeImmutable)#%d (3) {
+DateTimeImmutable::createFromTimestamp(-2147483647.5): object(DateTimeImmutable)#%d (3) {
   ["date"]=>
-  string(26) "1901-12-13 20:45:51.500000"
+  string(26) "1901-12-13 20:45:52.500000"
   ["timezone_type"]=>
   int(1)
   ["timezone"]=>