libmodulemd: upgrade 2.14.0 -> 2.15.0

(From OE-Core rev: dd40fd96b4d28890ac75639ff23d8267aca18e3c)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/libmodulemd/libmodulemd_git.bb

@@ -6,8 +6,8 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=25a3927bff3ee4f5b21bcb0ed3fcd6bb"
 
 SRC_URI = "git://github.com/fedora-modularity/libmodulemd;protocol=https;branch=main"
 
-PV = "2.14.0"
-SRCREV = "ee80309bc766d781a144e6879419b29f444d94eb"
+PV = "2.15.0"
+SRCREV = "bfde7f2d04fbb22e26c9eb843e4ccc478762dd8d"
 
 S = "${WORKDIR}/git"