pgsql: Refactor logical worker synchronization code into a separate fil

Refactor logical worker synchronization code into a separate file.

To support the upcoming addition of a sequence synchronization worker,
this patch extracts common synchronization logic shared by table sync
workers and the new sequence sync worker into a dedicated file. This
modularization improves code reuse, maintainability, and clarity in the
logical workers framework.

Author: vignesh C <vignesh21@gmail.com>
Author: Hou Zhijie <houzj.fnst@fujitsu.com>
Reviewed-by: shveta malik <shveta.malik@gmail.com>
Reviewed-by: Dilip Kumar <dilipbalaut@gmail.com>
Reviewed-by: Peter Smith <smithpb2250@gmail.com>
Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Discussion: https://postgr.es/m/CAA4eK1LC+KJiAkSrpE_NwvNdidw9F2os7GERUeSxSKv71gXysQ@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/41c674d2e31e8304a6edbcb5183d326798ba00f6

Modified Files
--------------
src/backend/catalog/pg_subscription.c              |   4 +-
src/backend/replication/logical/Makefile           |   1 +
.../replication/logical/applyparallelworker.c      |   2 +-
src/backend/replication/logical/meson.build        |   1 +
src/backend/replication/logical/syncutils.c        | 187 ++++++++++++++++++++
src/backend/replication/logical/tablesync.c        | 196 +++------------------
src/backend/replication/logical/worker.c           |  22 +--
src/bin/pg_dump/common.c                           |   4 +-
src/bin/pg_dump/pg_dump.c                          |   8 +-
src/bin/pg_dump/pg_dump.h                          |   2 +-
src/include/catalog/pg_subscription_rel.h          |   2 +-
src/include/replication/worker_internal.h          |  14 +-
src/tools/pgindent/typedefs.list                   |   2 +-
13 files changed, 243 insertions(+), 202 deletions(-)