pgsql: meson: Add 'running' test setup, as a replacement for installche

meson: Add 'running' test setup, as a replacement for installcheck

To run all tests that support running against existing server:
$ meson test --setup running

To run just the main pg_regress tests against existing server:
$ meson test --setup running regress-running/regress

To ensure the 'running' setup continues to work, test it as part of the
freebsd CI task.

Discussion: https://postgr.es/m/CAH2-Wz=XDQcmLoo7RR_i6FKQdDmcyb9q5gStnfuuQXrOGhB2sQ@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/3f0e786ccbf50a2f819fbf72d51ba13221adaaa1

Modified Files
--------------
.cirrus.yml                                   | 15 +++++
contrib/basic_archive/meson.build             |  3 +
contrib/pg_freespacemap/meson.build           |  3 +
contrib/pg_stat_statements/meson.build        |  4 ++
contrib/pg_walinspect/meson.build             |  3 +
contrib/test_decoding/meson.build             |  5 ++
doc/src/sgml/installation.sgml                |  6 ++
meson.build                                   | 91 ++++++++++++++++++++++-----
src/interfaces/ecpg/test/meson.build          |  1 +
src/test/isolation/meson.build                |  1 +
src/test/modules/commit_ts/meson.build        |  3 +
src/test/modules/snapshot_too_old/meson.build |  3 +
src/test/modules/test_oat_hooks/meson.build   |  1 +
src/test/modules/test_pg_dump/meson.build     |  2 +
src/test/modules/test_slru/meson.build        |  1 +
src/test/modules/worker_spi/meson.build       |  4 +-
src/test/regress/meson.build                  |  1 +
17 files changed, 132 insertions(+), 15 deletions(-)