Fix greenplum_path.sh usage for Cloudberry

[ostinru]

Cloudberry

Cloudberry replaced greenplum_path.sh to cloudberry-env.sh due to legal reasons:
apache/cloudberry#1166

So, we should use correct scripts. Otherwise tests fails:

Run make -C package deb-pxf6-cbdb-jammy
<...>
> [12/13] RUN source /usr/cloudberry-db/greenplum_path.sh  && PATH="/usr/local/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"     GPHOME="/usr/cloudberry-db"     PXF_HOME="/pxf_src/debian/build/gp/pxf"     JAVA_HOME="/usr/lib/jvm/java-1.11.0-openjdk-amd64"     dpkg-buildpackage -us -uc:
0.117 /bin/bash: line 1: /usr/cloudberry-db/greenplum_path.sh: No such file or directory