Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Fixed OSCreds retrieval."
  - Fixed OSCreds retrieval.

    The optional parameter 'project_name' was never getting
    a default value when not used causing an OSCredsError
    to be raised.

    Change-Id: I2a0986c62c5d9520f60ebd06db1f3a749e62361c
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index cf91f88..cb3b62b 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit cf91f88c2e3fb0fd54a7f33f44e0a8196a8481fb
+Subproject commit cb3b62b22a81660b0ab142410176d128e8207e28