Add top dir marker for Maven 4 (#3203)

This suppresses the warning about missing top level directory marker
during build with Maven 4.
The approach to add `.mvn` dir is the option to do it which does not
impact our standard builds with Maven 3.

Signed-off-by: Holger Friedrich <mail@holger-friedrich.de>
pull/3210/head
Holger Friedrich 2025-06-01 11:16:26 +02:00 committed by GitHub
parent 6c66733bd9
commit b76889373a
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required by Maven 4 to detect root dir; adding root=true to pom is not compatible with Maven 3