pgsql: Add started_by column to pg_stat_progress_analyze view.

Add started_by column to pg_stat_progress_analyze view.

The new column, started_by, indicates the initiator of the
analyze ('manual' or 'autovacuum'), helping users and monitoring tools
to better understand ANALYZE behavior.

Bump catalog version.

Author: Shinya Kato <shinya11.kato@gmail.com>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Reviewed-by: Sami Imseih <samimseih@gmail.com>
Reviewed-by: Yu Wang <wangyu_runtime@163.com>
Discussion: https://postgr.es/m/CAA5RZ0suoicwxFeK_eDkUrzF7s0BVTaE7M%2BehCpYcCk5wiECpw%40mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/ab40db3852dfa093b64c9266dd372fee414e993f

Modified Files
--------------
doc/src/sgml/monitoring.sgml         | 25 +++++++++++++++++++++++++
src/backend/catalog/system_views.sql |  5 ++++-
src/backend/commands/analyze.c       |  6 ++++++
src/include/catalog/catversion.h     |  2 +-
src/include/commands/progress.h      |  5 +++++
src/test/regress/expected/rules.out  |  7 ++++++-
6 files changed, 47 insertions(+), 3 deletions(-)