how do I run the task in my dictionary and then set a dependency on those tasks to run the flow_run task last after all off them have been completed

Here is an example, you append those tasks to a list and then manipulate the list

@task
def add_one(x):
    res = x + 1
    print(res)
    return res


@task
def add_two(x):
    res = x + 2
    print(res)
    return res


with Flow("forloop") as flow:
    inputs = [1, 2, 3, 4, 5]
    tasks = []
    for _in in inputs:
        a = add_one(_in)
        b = add_two(a)
        tasks.append(a)
        tasks.append(b)

    # set dependencies
    for i in range(1, len(tasks)):
        tasks[i].set_upstream(tasks[i - 1])

flow.run()