Release manila 8.1.2 off of stable/stein

Includes fixes for:
- Bug #1872873 (scheduler tally of in-flight usages)
- Bug #1872872 (finite user quotas with inf project quotas)
- Bug #1858328 (driver shrink behavior)
- Bug #1848889 (netapp share replication)
- Bug #1706137 (netapp QoS)
- Bug #1869712 (expensive calculation in scheduler)
- Bug #1870751 (group and share type access list)
- Bug #1699836 (type deletion with open group types)
- Bug #1707084 (netapp extra specs)
- Bug #1869148 (extension APIs in pyc files)

Change-Id: I01f251de2febf9a1253be8282830ccac186cabe3
Signed-off-by: Goutham Pacha Ravi <gouthampravi@gmail.com>

deliverables/stein/manila.yaml

@@ -31,6 +31,10 @@ releases:
     projects:
       - repo: openstack/manila
         hash: 7943ac4fb062a8e86bd63a01f90be5bb67523a46
+  - version: 8.1.2
+    projects:
+      - repo: openstack/manila
+        hash: 0f27c9e4da594d869143c99fc0c294c5ac0f5c7c
 branches:
   - location: 8.0.0.0rc1
     name: stable/stein