spec: Require Python 3.6

We are using some features of the 3.6 language in code and do not feel
like supporting older versions. Even RHEL 8 is on 3.6 so this should be
fine for all the cases we want to support.

CHANGELOG.md

@@ -4,6 +4,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 ### Changed
+- Bumped Python dependency to >= 3.6
 - Bumped Celery dependency to >= 5.2.2 due to a security bug in earlier versions
 - Added dependency on WTForms-SQLalchemy >= 0.3.0 due to the `wtforms.ext` module
   being removed in WTForms >= 3.0.0.

faf.spec

@@ -8,16 +8,17 @@ Source0: https://github.com/abrt/%{name}/archive/%{version}/%{name}-%{version}.t
 
 BuildArch: noarch
 
-%global satyr_ver 0.26
 %global celery_ver 5.2.2
+%global python_ver 3.6
+%global satyr_ver 0.26
 
 Requires(pre): shadow-utils
 
 Requires: cpio
 
 Requires: postgresql
 
-Requires: python3
+Requires: python3 >= %{python_ver}
 Requires: python3-argcomplete
 Requires: python3-cachelib
 Requires: python3-celery >= %{celery_ver}