commit 6b68390585a9ad52b6c12d8229c9091e675772d9
Author: Toshiaki Takahashi <ts-takahashi@nec.com>
Date:   Mon Oct 12 20:30:33 2020 +0900

    Update git submodules
    
    * Update tacker from branch 'master'
      - Temporarily remove Ceilometer installation
    
        Ceilometer installation seems to be the cause of POST_FAILURE,
        so this patch remove it temporarily.
    
        Related error
        https://zuul.opendev.org/t/openstack/build/5abe3c88e63249d0a6ad5bd764a9d604
    
        Ceilometer installation was removed before, because Gnocchi
        installation was failed. [1]
        After above error was resolved, we reverted Ceilometer
        installation. [2]
        However, the tests using Ceilometer do not succeed as mentioned
        at the beginning of this commit message.
    
        [1] https://review.opendev.org/#/c/751965/
        [2] https://review.opendev.org/#/c/754882/
    
        Change-Id: I5c6ddd31abd58fa2941a3a1919f09f473dfd836e

diff --git a/tacker b/tacker
index 78a753d..21bbf57 160000
--- a/tacker
+++ b/tacker
@@ -1 +1 @@
-Subproject commit 78a753d564957453fe5cb21830c86675a25d4120
+Subproject commit 21bbf57372218746527bea9eb344ccc3f0aba5d9