chore: add sider config (#24892)

Co-authored-by: Sagar Vora <sagar@resilient.tech>
diff --git a/sider.yml b/sider.yml
new file mode 100644
index 0000000..2ca6e8d
--- /dev/null
+++ b/sider.yml
@@ -0,0 +1,3 @@
+linter:
+  flake8:
+    config: .flake8
\ No newline at end of file