Install latest git-review from PyPI in quickstart

With the removal[*] of refs/publish in Gerrit 3.0.0, git-review
1.27.1 or later is needed to avoid attempting a push there and
ultimately failing. The git-review package in Ubuntu 18.04 LTS is
too old (1.26.0), so use latest from PyPI instead.

Adjust the quick-start document to install git-review with pip, and
on Debian/Ubuntu suggest including the python3-pip distro package
since it's split out separate from the interpreter packages.

[*] https://gerrit-review.googlesource.com/c/gerrit/+/192494

Change-Id: I247fb761667a99cf9f25478b49c5a1fe5d11a6cf

doc/source/admin/examples/docker-compose.yaml

@@ -4,7 +4,7 @@ version: '2'
 
 services:
   gerrit:
-    image: gerritcodereview/gerrit:2.16.8
+    image: gerritcodereview/gerrit
     ports:
       - "8080:8080"
       - "29418:29418"

doc/source/admin/quick-start.rst

@@ -33,19 +33,20 @@ Before you start, ensure that some needed packages are installed.
 
    # Red Hat / Fedora / CentOS:
 
-   sudo yum install docker docker-compose git git-review
+   sudo yum install docker docker-compose git
 
    # OpenSuse:
 
-   sudo zypper install docker docker-compose git git-review
+   sudo zypper install docker docker-compose git
 
    # Ubuntu / Debian:
 
-   sudo apt-get install docker-compose git git-review
+   sudo apt-get install docker-compose git python3-pip
 
    # Start and Enable the docker service on Fedora / CentOS
    # Red Hat / OpenSuse:
 
+   sudo python3 -m pip install git-review
    sudo systemctl enable docker.service
    sudo systemctl start docker.service
 

playbooks/quick-start/run.yaml

@@ -7,13 +7,15 @@
       use_upstream_docker: false
     - use-buildset-registry
   tasks:
-    - name: Install docker-compose and git-review
+    - name: Install docker-compose
       package:
         name:
           - docker-compose
-          - git-review
         state: present
       become: true
+    - name: Install git-review
+      command: python3 -m pip install git-review
+      become: true
     - name: Create workspace directory
       file:
         state: directory