Fix Javadoc warnings

[javier-godoy]

Describe the bug

There are javadoc warnings

Expected behavior

No response

Minimal reproducible example

No response

Add-on Version

2.6.1

Vaadin Version

Additional information

[WARNING] Javadoc Warnings
[WARNING] J:\fc\addons\ChipFieldAddon\src\main\java\com\flowingcode\vaadin\addons\chipfield\ChipField.java:299: warning: Tag @link: reference not found: #setReadOnly()
[WARNING] /** @deprecated use {@link #setReadOnly()} */