Deprecation warnings on Rocky 10.2 with current dev branch

[Daniel Westermann (DWE)]

Hi,

I've just noticed this while building from the dev branch on Rocky 10.2 x64:

[1086/2136] Compiling C object src/backend/postgres_lib.a.p/utils_adt_xml.c.o
../postgresql/src/backend/utils/adt/xml.c: In function ‘xml_parse’:
../postgresql/src/backend/utils/adt/xml.c:1924:25: warning: 
‘xmlKeepBlanksDefault’ is deprecated [-Wdeprecated-declarations]
 1924 |                         save_keep_blanks = 
xmlKeepBlanksDefault(preserve_whitespace ? 1 : 0);
      |                         ^~~~~~~~~~~~~~~~
In file included from ../postgresql/src/backend/utils/adt/xml.c:51:
/usr/include/libxml2/libxml/parser.h:957:17: note: declared here
  957 |                 xmlKeepBlanksDefault    (int val);
      |                 ^~~~~~~~~~~~~~~~~~~~
../postgresql/src/backend/utils/adt/xml.c:1948:25: warning: 
‘xmlKeepBlanksDefault’ is deprecated [-Wdeprecated-declarations]
 1948 |                         xmlKeepBlanksDefault(save_keep_blanks);
      |                         ^~~~~~~~~~~~~~~~~~~~
/usr/include/libxml2/libxml/parser.h:957:17: note: declared here
  957 |                 xmlKeepBlanksDefault    (int val);
      |                 ^~~~~~~~~~~~~~~~~~~~
../postgresql/src/backend/utils/adt/xml.c:1961:17: warning: 
‘xmlKeepBlanksDefault’ is deprecated [-Wdeprecated-declarations]
 1961 |                 xmlKeepBlanksDefault(save_keep_blanks);
      |                 ^~~~~~~~~~~~~~~~~~~~
/usr/include/libxml2/libxml/parser.h:957:17: note: declared here
  957 |                 xmlKeepBlanksDefault    (int val);
      |                 ^~~~~~~~~~~~~~~~~~~~

Is this known already?

Regards
Daniel