Elsa Internal Scheduling triggers multiple times

## Description
Using the internal scheduling of ELSA v3.5.3, there are multiple Jobs in my instance, wich should run once a day at a certain time, triggered twice.

SHOULD BE:
The cron definition "0 30 5 * * ?" should trigger at 5:30AM every day

ACTUAL BEHAVIOR:
The mentioned cron definition ist triggered at at 5:29AM and again at at 5:30AM every day

Even deleting these workflow definitions and restarting IIS which creates the definitions, doesn't help

Code Example which defines such a workflow:
```
using Elsa.Workflows;
using Elsa.Workflows.Activities;
using Elsa.Workflows.Models;
using Elsa.Workflows.Runtime.ActivationValidators;

public class MyJobWorkflow(IConfiguration configuration) : WorkflowBase
{
protected override void Build(IWorkflowBuilder builder)
{
builder.Name = "My Job Workflow";
builder.Description = "My Job Workflow Description";
builder.DefinitionId = "WorkflowDefinitionId";
builder.WithActivationStrategyType();

builder.Root = new Sequence
{
Activities =
{
new Elsa.Scheduling.Activities.Cron
{
CanStartWorkflow = true,
CronExpression = new Input(
configuration.GetValue("Elsa:MyJobWorkflow:Interval")! // FROM appsettings.json
)
},
new MyActivity()
}
};
}
}

```

Start by reproducing the issue with Elsa.Scheduling.Activities.Cron, the expression "0 30 5 * * ?", and the workflow definition shown in the report. Inspect the internal scheduling path used by the Cron activity and compare the 5:29AM and 5:30AM triggers. Done means the expression starts the workflow once at 5:30AM each day, including after the definitions are recreated and IIS is restarted.

Written by the indexing model from the issue text.