Fix issue template config

Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>

.github/ISSUE_TEMPLATE/config.yaml

@@ -1,5 +0,0 @@
-blank_issues_enabled: false
-contact_links:
-- name: Dex Slack channel
-  url: https://kubernetes.slack.com/messages/dexidp
-  about: Please ask and answer questions here.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Dex Slack channel
+    url: https://kubernetes.slack.com/messages/dexidp
+    about: Please ask and answer questions here.