jruby 9.4.5.0+ds-1 can not be rebuilt from source

When building jruby, the following error occurs:

[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-install-
plugin:3.1.1:install (default-install) on project jruby-parent: Failed to
install artifact org.jruby:jruby-parent:pom:9.4.5.0:
/<<PKGBUILDDIR>>/debian/maven-repo/org/jruby/jruby-parent/9.4.5.0/jruby-
parent-9.4.5.0.pom (Permission denied) -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e
switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please
read the following articles:
[ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
dh_auto_build: error: /usr/lib/jvm/default-java/bin/java -noverify -cp
/usr/share/maven/boot/plexus-classworlds-2.x.jar -Dmaven.home=/usr/share/maven
-Dmaven.multiModuleProjectDirectory=/<<BUILDDIR>>/jruby-9.4.5.0\+ds
-Dclassworlds.conf=/etc/maven/m2-debian.conf
-Dproperties.file.manual=/<<BUILDDIR>>/jruby-9.4.5.0\+ds/debian/maven.properties
org.codehaus.plexus.classworlds.launcher.Launcher -s/etc/maven/settings-
debian.xml -Ddebian.dir=/<<BUILDDIR>>/jruby-9.4.5.0\+ds/debian
-Dmaven.repo.local=/<<BUILDDIR>>/jruby-9.4.5.0\+ds/debian/maven-repo --batch-
mode -Djruby.revision=9.4.5.0\+ds-1build1\~ppa2 -Pmain,complete,dist
-DskipTests -Dnotimestamp=true -Dlocale=en_US returned exit code 1
make[1]: *** [debian/rules:43: override_dh_auto_build] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:9: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------
Build finished at 2024-02-24T07:14:56Z

This is due to maven-repo-helper copying symlinks to jruby poms rather than
poms themselves.

A possible solution is to copy jruby poms manually in
execute_after_dh_auto_configure:
        # copy jruby poms rather than links, because the build will try to
patch them
        for p in jruby jruby-parent jruby-base jruby-core jruby-artifacts ; do
\
                rm debian/maven-repo/org/jruby/$$p/* ;\
                mkdir debian/maven-repo/org/jruby/$$p/debian ; \
                cp /usr/share/maven-repo/org/jruby/$$p/debian/* debian/maven-
repo/org/jruby/$$p/debian/ ;\
        done