package/samba4: bump version to 4.6.6

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/samba4/samba4.hash

 # Locally calculated
-sha256 f4c17123e3cc852a5ecc7e38884b00deab57632b9519aebc243e2a94b9b5ace4  samba-4.5.12.tar.gz
+sha256 fc31c809f7d85ae30f2b7dcddcb8404201b626047458cb5f2b743d4f6f3f1a8e  samba-4.6.6.tar.gz

package/samba4/samba4.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SAMBA4_VERSION = 4.5.12
+SAMBA4_VERSION = 4.6.6
 SAMBA4_SITE = https://download.samba.org/pub/samba/stable
 SAMBA4_SOURCE = samba-$(SAMBA4_VERSION).tar.gz
 SAMBA4_INSTALL_STAGING = YES