Ignore run-id when providing also job for rerun

This makes the behaviour consistent with gh run view.

pkg/cmd/run/rerun/rerun.go

@@ -69,7 +69,11 @@ func NewCmdRerun(f *cmdutil.Factory, runF func(*RerunOptions) error) *cobra.Comm
 			}
 
 			if opts.RunID != "" && opts.JobID != "" {
-				return cmdutil.FlagErrorf("specify only one of `<run-id>` or `--job`")
+				opts.RunID = ""
+				if opts.IO.CanPrompt() {
+					cs := opts.IO.ColorScheme()
+					fmt.Fprintf(opts.IO.ErrOut, "%s both run and job IDs specified; ignoring run ID\n", cs.WarningIcon())
+				}
 			}
 
 			if runF != nil {

pkg/cmd/run/rerun/rerun_test.go

@@ -78,10 +78,13 @@ func TestNewCmdRerun(t *testing.T) {
 			},
 		},
 		{
-			name:     "with args jobID and runID fails",
-			tty:      true,
-			cli:      "1234 --job 5678",
-			wantsErr: true,
+			name: "with args jobID and runID uses jobID",
+			tty:  true,
+			cli:  "1234 --job 5678",
+			wants: RerunOptions{
+				JobID: "5678",
+				RunID: "",
+			},
 		},
 		{
 			name:     "with arg job with no ID fails",