cubicweb #5224632 sqlite <= 3.7 integrity error not caught [validation pending]

When an integrity error concerns a single column, the error message is at the singular form, which is not matched by the regexp in doexec().

prioritynormal
typebug
done in3.20.7
load0.500
load left0.000
closed by#f92823a66f18 [sqlite] Fix integrity error parsing
patch[sqlite] Fix integrity error parsing [applied]