utfcpp: update 4.0.5 -> 4.0.6

(From OE-Core rev: 6d01795fd3437841dad31a80f2abe18c09b839da)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/utfcpp/utfcpp_4.0.5.bb → meta/recipes-support/utfcpp/utfcpp_4.0.6.bb

@@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=e4224ccaecb14d942c71d31bef20d78c \
 
 SRC_URI = "gitsm://github.com/nemtrif/utfcpp;protocol=https;branch=master"
 
-SRCREV = "6be08bbea14ffa0a5c594257fb6285a054395cd7"
+SRCREV = "b26a5f718f4f370af1852a0d5c6ae8fa031ba7d0"
 
 S = "${WORKDIR}/git"