Use Botan 2.9.0 for tests

scripts/test.sh

@@ -4,7 +4,7 @@
 build_botan()
 {
 	# same revision used in the build recipe of the testing environment
-	BOTAN_REV=2.8.0
+	BOTAN_REV=2.9.0
 	BOTAN_DIR=$TRAVIS_BUILD_DIR/../botan
 
 	if test -d "$BOTAN_DIR"; then

testing/scripts/recipes/011_botan.mk

@@ -2,7 +2,7 @@
 
 PKG = botan
 SRC = https://github.com/randombit/$(PKG).git
-REV = 2.8.0
+REV = 2.9.0
 
 NUM_CPUS := $(shell getconf _NPROCESSORS_ONLN)