Bug#1036069: gnat: gprconfig -show-targets' fails with constraint_error

[nicolas . boulenguez]

Source: gprbuild
Followup-For: Bug #1036069
Control: reassign -1 gprconfig 23.0.0-3
Control: tags -1 + pending

Hello.
Thanks for reporting.
The issue should be fixed by the next  upload of gprconfig-kb.