Update documentation for tags in summary module

[EgorkaKulikov]

Description

Current documentation looks as follows https://github.com/UnitTestBot/UTBotJava/blob/main/docs/summaries/CustomJavadocTags.md

Actually, some new tags were added since the last update of this file, mostly related to artificial errors processing.
We need to synchronize the documentation with an actual implementation.

[EgorkaKulikov]

FYI @olganaumenko

[EgorkaKulikov]

Let's really take this issue into account after we support Spring summarization.