pgsql: Fix regression in TLS session ticket disabling

Fix regression in TLS session ticket disabling

Commit 274bbced disabled session tickets for TLSv1.3 on top of the
already disabled TLSv1.2 session tickets, but accidentally caused
a regression where TLSv1.2 session tickets were incorrectly sent.
Fix by unconditionally disabling TLSv1.2 session tickets and only
disable TLSv1.3 tickets when the right version of OpenSSL is used.

Backpatch to all supported branches.

Reported-by: Cameron Vogt <cvogt@automaticcontrols.net>
Reported-by: Fire Emerald <fire.github@gmail.com>
Reviewed-by: Jacob Champion <jacob.champion@enterprisedb.com>
Discussion: https://postgr.es/m/DM6PR16MB3145CF62857226F350C710D1AB852@DM6PR16MB3145.namprd16.prod.outlook.com
Backpatch-through: v12

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/4fdb6558c2709c799643d26f3f956395ae72a8ef

Modified Files
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src/backend/libpq/be-secure-openssl.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)