[damned-lies] chore: add development requirements in -dev.txt file

[Guillaume Bernard <gbernard src gnome org>]

commit 7a528a759d2ec4d542d0e552295a6aa33d5cc650
Author: Guillaume Bernard <associations guillaume-bernard fr>
Date:   Mon May 9 15:06:21 2022 +0200

    chore: add development requirements in -dev.txt file

 requirements-dev.txt | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/requirements-dev.txt b/requirements-dev.txt
index aec394f4..496650f7 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1 +1,4 @@
 django-debug-toolbar
+prospector[with_pyroma,with_bandit]
+flake8
+coverage