makefiles: bump riotdocker version

Author: crasbe

makefiles/docker.inc.mk

@@ -5,7 +5,7 @@
 # When the docker image is updated, checks at
 # dist/tools/buildsystem_sanity_check/check.sh start complaining in CI, and
 # provide the latest values to verify and fill in.
-DOCKER_TESTED_IMAGE_REPO_DIGEST := 21c416fbbb94a99c3d9c76341baf5a9740608b1d1af89967127c7a171248fd7b
+DOCKER_TESTED_IMAGE_REPO_DIGEST := 08fa7da2c702ac4db7cf57c23fc46c1971f3bffc4a6eff129793f853ec808736
 
 DOCKER_PULL_IDENTIFIER := docker.io/riot/riotbuild@sha256:$(DOCKER_TESTED_IMAGE_REPO_DIGEST)
 export DOCKER_IMAGE ?= $(DOCKER_PULL_IDENTIFIER)