[main] Fix RegexFilter NPE when `useRawMsg` is null (#3265 port) (#4152)

* Fix RegexFilter NPE when useRawMsg is null (#3265)

Avoid NPE when unboxing a null Boolean by using Boolean.TRUE.equals().

Signed-off-by: Vasily Pelikh <2010720+vpelikh@users.noreply.github.com>

* Apply spotless formatting

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Signed-off-by: Vasily Pelikh <2010720+vpelikh@users.noreply.github.com>
Co-authored-by: Ramanathan <ramanathanbscmca@gmail.com>
2 files changed