Update module go to 1.20 - autoclosed

This MR contains the following updates:

Package	Type	Update	Change
go (source)	golang	minor	1.14 -> 1.20

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This MR has been generated by Renovate Bot.

go.mod

 module git.autistici.org/ai3/tools/aux-db
 
-go 1.14
+go 1.20
 
 require (
 	git.autistici.org/ai3/go-common v0.0.0-20221125154433-06304016b1da