The onChange function is not being triggered when the caption of image is made blank.

[cshanjib]

Scenario:
When updating the content in the caption, the onChange function of editorjs is triggered, but when the text field is made blank, it won't get triggered.
For eg. When we type "a" it gets triggered, but when we remove "a" and make it empty, the onChange function of the editors is not triggered.

This same scenario was replicated and resolved in Pararagraph Block tool.
Issue Link: codex-team/editor.js#2384