Point submodules to latest master branches

We did not update them for really long time and the currently used
hashes are quite old and probably wouldn't work without manually
updating all submodules.

Not as if it's something totally crucial (we ask to update submodules
all the times and that's what `make update` does) but updating hashes
will save some cloning/checkout time.

1 files changed, 0 insertions, 0 deletions

diff --git a/source/tools b/source/tools
-Subproject 373945d0978b6601c55c9d5879e0f488b18515c
+Subproject 896c5f78952adb2d091d28c65086d46992dabda