Update git submodules

* Update kolla from branch 'master'
  to e90762c3abd2d860d3a21a2d03afa6cae48fe778
  - Merge "Revert "kolla-toolbox: Bump ansible-core to 2.20""
  - Revert "kolla-toolbox: Bump ansible-core to 2.20"

    This reverts commit ef12d96731bc82472941c81ac24e3a13736674d0.

    Reason for revert: Broke community.mysql

    Change-Id: Icb85112c66645d8df00eb0c40076a6bd822f6866
    Signed-off-by: Michal Nasiadka <mnasiadka@gmail.com>

diff --git a/kolla b/kolla
index 48b4337b1e102329dca6b365419f0c9839a280c0..e90762c3abd2d860d3a21a2d03afa6cae48fe778 160000 (submodule)
--- a/kolla
+++ b/kolla
@@ -1 +1 @@
-Subproject commit 48b4337b1e102329dca6b365419f0c9839a280c0
+Subproject commit e90762c3abd2d860d3a21a2d03afa6cae48fe778