all: make goimports happy

run goimports with -local flag. separates cue packages and other.
  $ goimports -w -local cuelang.org/go .

Change-Id: I3849b916fde18e4f62789cfe5220e12a84aaddbc
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/4501
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/encoding/openapi/build.go b/encoding/openapi/build.go
index 8dc1db7..405b21c 100644
--- a/encoding/openapi/build.go
+++ b/encoding/openapi/build.go
@@ -24,10 +24,11 @@
 	"strconv"
 	"strings"
 
+	"github.com/cockroachdb/apd/v2"
+
 	"cuelang.org/go/cue"
 	"cuelang.org/go/cue/errors"
 	"cuelang.org/go/cue/token"
-	"github.com/cockroachdb/apd/v2"
 )
 
 type buildContext struct {