pgsql: oauth: Fix incorrect const markers in struct

oauth: Fix incorrect const markers in struct

Two members in PGoauthBearerRequest were incorrectly marked as const.
While in there, align the name of the struct with the typedef as per
project style.

Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/912516.1740329361@sss.pgh.pa.us

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/03366b61dfe596796a19368f851859a4764229b9

Modified Files
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doc/src/sgml/libpq.sgml         | 10 +++++-----
src/interfaces/libpq/libpq-fe.h | 10 +++++-----
2 files changed, 10 insertions(+), 10 deletions(-)