Doc: Add diskquota license for ASF compliance #566

Job	Run time
check-skip	3s
prepare-test-matrix-deb	4s
Build Apache Cloudberry DEB	14m 36s
DEB Install Test Apache Cloudberry	2m 3s
ic-deb-contrib	4m 15s
pax-ic-deb-good-opt-off	23m 31s
ic-deb-gpcontrib	3m 55s
ic-deb-good-opt-on	30m 39s
ic-cbdb-parallel	28m 43s
ic-deb-good-opt-off	25m 49s
pax-ic-deb-good-opt-on	27m 21s
Generate Apache Cloudberry Build Report	4s
	2h 41m 3s

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