pgsql: psql: Update \timing also in case of an error

psql: Update \timing also in case of an error

The changes to show all query results (7844c9918) broke \timing output
in case of an error; it didn't update the timing result and showed
0.000 ms.

Fix by updating the timing result also in the error case. Also, for
robustness, update the timing result any time a result is obtained,
not only for the last, so a sensible value is always available.

Reported-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Author: Richard Guo <guofenglinux(at)gmail(dot)com>
Author: Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>
Discussion: https://www.postgresql.org/message-id/3813350.1652111765%40sss.pgh.pa.us

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/9520f8d92a8681e441cc863422babd544353dd39

Modified Files
--------------
src/bin/psql/common.c | 14 ++++++++++++--
src/bin/psql/t/001_basic.pl | 12 ++++++++++--
2 files changed, 22 insertions(+), 4 deletions(-)