grim/convey

Update to Go 1.21 and use some new helpers

5 months ago, Elliott Sales de Andrade
adb6eb2a7d21
Update to Go 1.21 and use some new helpers

`strings.Cut` was added in 1.18, and `maps`/`slices` in 1.21.

Testing Done:
Ran `go test ./...`

Reviewed at https://reviews.imfreedom.org/r/2870/
package podman
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestRemove(t *testing.T) {
r := &Remove{
Tags: []string{"foo"},
}
assert.NoError(t, r.Valid())
}
func TestRemoveTagsRequired(t *testing.T) {
r := &Remove{}
assert.ErrorIs(t, r.Valid(), ErrNoTags)
}