Add boto3 as s3 dependency for Glance container

boto3 library is needed [1] for glance_store and didn't installed yet
since [2] adds s3 support back. this change adds both binary and source
parts to install boto3 library.

1. 04e5ead7c0/setup.cfg (L76)
2. I203134837319080ead96da69048baf90086d2117

Closes-Bug: #1884259
Change-Id: I199185e24cedd2e282c53460a24aeffc83478a12
Signed-off-by: Maksim Malchuk <maksim.malchuk@gmail.com>

docker/glance/glance-base/Dockerfile.j2

@@ -15,6 +15,7 @@ LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build
     {% if base_package_type == 'rpm' %}
         {% set glance_base_packages = [
             'openstack-glance',
+            'python3-boto3',
             'python3-oslo-vmware',
             'python3-rados',
             'python3-rbd'
@@ -22,6 +23,7 @@ LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build
     {% elif base_package_type == 'deb' %}
         {% set glance_base_packages = [
             'glance',
+            'python3-boto3',
             'python3-os-brick',
             'python3-oslo.vmware',
             'python3-rados',
@@ -55,7 +57,7 @@ ADD glance-base-archive /glance-base-source
 
 {% set glance_base_pip_packages = [
     '/glance',
-    'glance_store[cinder,vmware,swift]'
+    'glance_store[cinder,vmware,swift,s3]'
 ] %}
 
 # add missing rootwrap config present in glance_store repo

releasenotes/notes/bug-1884259-23bdaa6c1c038a81.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fixes missing boto3 library required by glance_store.
+    `LP#1884259 <https://launchpad.net/bugs/1884259>`__