Add citation

Reference:
https://github.com/python-attrs/attrs/commit/0e9a101

Signed-off-by: caofei <caofei@xfusion.com>

0001-Add-citation.patch

@@ -0,0 +1,39 @@
+From 0e9a101fc0414a53d72684a053818da96cbe4e6f Mon Sep 17 00:00:00 2001
+From: Hynek Schlawack <hs@ox.cx>
+Date: Thu, 28 Jul 2022 15:54:39 +0200
+Subject: [PATCH] Add citation
+
+---
+ CITATION.cff | 9 +++++++++
+ MANIFEST.in  | 2 +-
+ 2 files changed, 10 insertions(+), 1 deletion(-)
+ create mode 100644 CITATION.cff
+
+diff --git a/CITATION.cff b/CITATION.cff
+new file mode 100644
+index 0000000..83718ad
+--- /dev/null
++++ b/CITATION.cff
+@@ -0,0 +1,9 @@
++cff-version: 1.2.0
++message: If you use this software, please cite it as below.
++title: attrs
++type: software
++authors:
++  - given-names: Hynek
++    family-names: Schlawack
++    email: hs@ox.cx
++doi: 10.5281/zenodo.6925130
+diff --git a/MANIFEST.in b/MANIFEST.in
+index 3d68bf9..6dbe985 100644
+--- a/MANIFEST.in
++++ b/MANIFEST.in
+@@ -1,4 +1,4 @@
+-include LICENSE *.rst *.toml *.yml *.yaml *.ini
++include LICENSE *.rst *.toml *.yml *.yaml *.ini CITATION.cff
+ graft .github
+ 
+ # Stubs
+-- 
+2.33.0
+

python-attrs.spec

@@ -9,7 +9,7 @@ object protocols. \
 Name:           python-attrs
 Summary:        Python attributes without boilerplate
 Version:        22.1.0
-Release:        5
+Release:        6
 License:        MIT
 URL:            http://www.attrs.org/
 Source0:        https://github.com/hynek/attrs/archive/%{version}/attrs-%{version}.tar.gz
@@ -18,6 +18,7 @@ Patch0:         0001-Update-.gitignore.patch
 Patch1:         0001-Fix-typo.patch
 Patch2:         0001-Fix-type-docstring.patch
 Patch3:         0001-Fix-minor-stub-issues-1072.patch
+Patch6000:	0001-Add-citation.patch
 
 BuildRequires:  python%{python3_pkgversion}-setuptools
 BuildRequires:  python%{python3_pkgversion}-devel
@@ -62,6 +63,9 @@ PYTHONPATH=$RPM_BUILD_ROOT/%{python3_sitelib} py.test-3 -v
 %doc AUTHORS.rst README.rst
 
 %changelog
+* Tue Jul 18 2023 caofei <caofei@xfusion.com> -  22.1.0-6
+- Add citation
+
 * Fri Jan 13 2023 caofei <caofei@xfusion.com> -  22.1.0-5
 - Fix minor stub issues