[pgpool-committers: 10329] pgpool: Doc: Update configuration example to 4.6 and PostgreSQL 17.

[Bo Peng]

Doc: Update configuration example to 4.6 and PostgreSQL 17.

This commit includes:
- update configuration example to 4.6 and PostgreSQL 17
- update OS to Rocky Linux 9

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=b568e1c07c97c13339ce89a40e34ea25898f0013

Modified Files
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doc.ja/src/sgml/example-cluster.sgml | 429 +++++++++++++++---------------
doc/src/sgml/example-cluster.sgml    | 489 ++++++++++++++++++-----------------
2 files changed, 471 insertions(+), 447 deletions(-)