bump required go version to 1.18

.github/workflows/go.yml

@@ -4,7 +4,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.16.x, 1.17.x, 1.18.x, 1.19.x, 1.20.x]
+        go-version: [1.18.x, 1.19.x, 1.20.x, 1.21.x, 1.22.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:

go.mod

@@ -1,10 +1,17 @@
 module github.com/muir/nject
 
-go 1.16
+go 1.18
 
 require (
-	github.com/kr/pretty v0.2.0 // indirect
 	github.com/muir/reflectutils v0.7.0
 	github.com/stretchr/testify v1.8.2
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/kr/pretty v0.2.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )