Use Go 1.18 as minimal version

ccoVeille · ccoVeille · commit 752ec149a03c · 2024-04-21T18:24:27.000+02:00
This version is widely spread and accepted Fixes #2
diff --git a/go.mod b/go.mod
@@ -1,3 +1,3 @@
 module github.com/RealAlexandreAI/json-repair
 
-go 1.1
+go 1.18

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,3 @@`
`1`	`1`	`module github.com/RealAlexandreAI/json-repair`
`2`	`2`
`3`		`-go 1.1`
	`3`	`+go 1.18`