Revert to Go 1.18 in go.mod and make policy around this official (#390)

README.md

@@ -255,6 +255,12 @@ The current bmclib version is `v2` and is being developed on the `main` branch.
 
 The previous bmclib version is in maintenance mode and can be found here [v1](https://github.com/bmc-toolbox/bmclib/v1).
 
+## Go version in `go.mod`
+
+As a library we will only bump the version of Go in the `go.mod` file when there are required dependencies in bmclib that necessitate
+a version bump. When consuming bmclib in your project, we recommend always building with the latest Go version but this
+should be in your hands as a user as much as possible.
+
 ## Acknowledgments
 
 bmclib v2 interfaces with Redfish on BMCs through the Gofish library https://github.com/stmcginnis/gofish

go.mod

@@ -1,6 +1,6 @@
 module github.com/bmc-toolbox/bmclib/v2
 
-go 1.22
+go 1.18
 
 require (
 	dario.cat/mergo v1.0.0

go.sum

@@ -88,7 +88,6 @@ golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
 golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.19.0 h1:+ThwsDv+tYfnJFhF4L8jITxu1tdTWRTZpdsWgEgjL6Q=
-golang.org/x/term v0.19.0/go.mod h1:2CuTdWZ7KHSQwUzKva0cbMg6q2DMI3Mmxp+gKJbskEk=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=