pgsql: tests: Don't fail due to high default timeout in postmaster/003_

tests: Don't fail due to high default timeout in postmaster/003_start_stop

Some BF animals use very high timeouts due to their slowness. Unfortunately
postmaster/003_start_stop fails if a high timeout is configured, due to
authentication_timeout having a fairly low max.

As this test is reasonably fast, the easiest fix seems to be to cap the
timeout to 600.

Per buildfarm animal skink.

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: /messages/by-id/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/b48832cddbf57a3428f1a553e395f1870e1b0cb5

Modified Files
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src/test/postmaster/t/003_start_stop.pl | 4 ++++
1 file changed, 4 insertions(+)