upgrade bos so tests will pass

Signed-off-by: Casey Kuhlman <casey@monax.io>

scripts/deps/bos.sh

 #!/usr/bin/env bash
 
 # The git revision of Bosmarmot/bos we will build and install into ./bin/ for integration tests
-echo "29cf8c75cb5cbfe068468736eecd1c391f8b6c44"
\ No newline at end of file
+echo "86a3a0879782bec0a9f300d69a542fbbe3737fa9"