tickInterval does not support seconds or milliseconds

[vertxxyz]

Description

tickInterval for gantt charts does not support seconds or milliseconds despite D3 supporting them and ms support being added.

Steps to reproduce

Use the supplied code, note how setting the tickInterval with either option does nothing to the chart.

Screenshots

No response

Code Sample

---
displayMode: compact
---
gantt
    dateFormat SSS
    %% tickInterval 0.00008minute
    %% tickInterval 5millisecond
    axisFormat •
    section Frame
        1: 0, 18ms
        2: 5ms
        3: 13ms

Setup

• Mermaid version: 10.3.1
• Browser and Version: Chrome, latest stable

Suggested Solutions

No response

Additional Context

I may have time to make a PR to fix this, as it seems fairly straight forward. Don't let that stop anyone though!