package/oniguruma: bump to version 6.9.7.1

Update hash of COPYING (update in year:
https://github.com/kkos/oniguruma/commit/56255e8b3e209453938b62cb2a5045d29e3c3ff9)

https://github.com/kkos/oniguruma/blob/v6.9.7.1/HISTORY

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/oniguruma/oniguruma.hash

@@ -1,3 +1,4 @@
-# Locally calculated
-sha256  bd0faeb887f748193282848d01ec2dad8943b5dfcb8dc03ed52dcc963549e819  onig-6.9.6.tar.gz
-sha256  6c7038393e8f30fee16257e713f77e383712f1465d6d25929596746b10b42bd3  COPYING
+# From https://github.com/kkos/oniguruma/releases/download/v6.9.7/onig-6.9.7.1.tar.gz.sha256
+sha256  6444204b9c34e6eb6c0b23021ce89a0370dad2b2f5c00cd44c342753e0b204d9  onig-6.9.7.1.tar.gz
+# Hash for license file
+sha256  70ba5469ea0bab6e18a32d7009068f996503168d27be57747e08da34337ff26f  COPYING

package/oniguruma/oniguruma.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-ONIGURUMA_VERSION = 6.9.6
+ONIGURUMA_VERSION = 6.9.7.1
 ONIGURUMA_SITE = \
 	https://github.com/kkos/oniguruma/releases/download/v$(ONIGURUMA_VERSION)
 ONIGURUMA_SOURCE = onig-$(ONIGURUMA_VERSION).tar.gz