Upadate NEWS and UPRADING with info about FPM openmetrics format addition

Author: bukka

NEWS

@@ -10,6 +10,9 @@ PHP                                                                        NEWS
   . Fixed bug #53826 (__callStatic fired in base class through a parent call if
     the method is private). (Nikita)
 
+- FPM:
+  . Added openmetrics status format. (Cees-Jan Kiewiet)
+
 - FTP:
   . Convert resource<ftp> to object \FTPConnection. (Sara)
 

UPGRADING

@@ -151,6 +151,10 @@ PHP 8.1 UPGRADE NOTES
         $file = new CURLStringFile($data, 'filename.txt', 'text/plain');
         curl_setopt($curl, CURLOPT_POSTFIELDS, ['file' => $file]);
 
+- FPM:
+  . Added openmetrics status format. It can be used by Prometheus to fetch FPM
+    metrics.
+
 - hash:
   . The following functions have changed signatures: