Test socket-close-on-exec.phpt fails on RV64

Description

Building RC of PHP 8.3.22 and 8.4.8 I got consistent failure https://github.com/php/php-src/issues/12077#issuecomment-2904487564 on RiscV64

Resulted in this output:

TEST 17326/17411 [sapi/fpm/tests/socket-close-on-exec.phpt]
========DIFF========
001- My sockets (expect to see 2 of them - one ESTABLISHED and one LISTEN):
002- %S 127.0.0.1:%d->127.0.0.1:%d (ESTABLISHED)
003- %S 127.0.0.1:%d (LISTEN)
001+ ERROR: Request failed; EXCEPTION: Reading from the stream failed
     
005- Sockets after exec(), expected to be empty:
006- string(0) ""
003+ LOGS:
004+ --------------------------------------------------------------------
005+ [21-May-2025 19:11:16] NOTICE: fpm is running, pid 32032
006+ [21-May-2025 19:11:16] NOTICE: ready to handle connections
007+ --------------------------------------------------------------------
008+ 
009+ >>> Response
010+ ----------------- OUT -----------------
011+ 
012+ ----------------- ERR -----------------
013+ 
014+ ---------------------------------------
015+ 
016+ ERROR: The response is invalid: 
017+ 
018+ LOGS:
019+ --------------------------------------------------------------------
020+ [21-May-2025 19:11:16] NOTICE: fpm is running, pid 32032
021+ [21-May-2025 19:11:16] NOTICE: ready to handle connections
022+ --------------------------------------------------------------------
023+ 
024+ 
     Done
========DONE========
FAIL FPM: Set CLOEXEC on the listen and connection socket [sapi/fpm/tests/socket-close-on-exec.phpt] 

PHP Version

8.3.22RC1 and 8.4.8RC1

Operating System

Alpinelinux

Start with sapi/fpm/tests/socket-close-on-exec.phpt and reproduce the failure on RISC-V64 using the PHP 8.3.22RC1 or 8.4.8RC1 build on Alpine Linux. Compare the expected socket output with the stream error and FPM logs; done means this test passes on the affected platform without invalid responses.