feat(modem): method to configure APN/authentication

reach/client/protocol/testsuite/operations.go

@@ -329,6 +329,32 @@ var testCases = []operationTestCase{
 
 		},
 	},
+	{
+		Name: "SetModem",
+		Run: func(t *testing.T, ops protocol.Operations) {
+			ctx := context.Background()
+			if err := ops.Connect(ctx); err != nil {
+				t.Errorf("%+v", errors.WithStack(err))
+				return
+			}
+
+			defer func() {
+				if err := ops.Close(ctx); err != nil {
+					t.Errorf("%+v", errors.WithStack(err))
+				}
+			}()
+			opts := []protocol.SetModemOptionsFunc{
+				protocol.WithApn("mmsbouygtel.com"),
+			}
+
+			if err := ops.SetModem(ctx, opts...); err != nil {
+				t.Errorf("%+v", errors.WithStack(err))
+				return
+			}
+			t.Logf("Modem Update")
+
+		},
+	},
 	{
 		Name: "GetNTRIPMountPoint",
 		Run: func(t *testing.T, ops protocol.Operations) {