insane: Fix debug-deps check

insane: Fix debug-deps check

Fixes bug: https://bugzilla.yoctoproject.org/show_bug.cgi?id=15901

The cheeck for debug-deps is looking for the mere existence of the
substring "-dbg" inside of the name of an RDEPENDS package, but it should be
an endswith check.  This helps with some eroneous errors in kernel
module names like:

ERROR: linux-xxx do_package_qa: QA Issue: kernel-modules rdepends on kernel-module-g-dbgp-6.12.22-ti [debug-deps]

and

ERROR: QA Issue: kernel-module-mtk-vcodec-dec-6.16.0-rc1-next-20250610-dirty rdepends on kernel-module-mtk-vcodec-dbgfs-6.16.0-rc1-next-20250610-dirty [debug-deps]

Signed-off-by: Ryan Eatmon <reatmon@ti.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>