pre-commit: apply autofixes hooks and fix the rest manually

- markdownlint (manual fix)
- end-of-file-fixer
- requirements-txt-fixer
- trailing-whitespace

roles/network_plugin/cilium/templates/hubble/config.yml.j2

@@ -12,10 +12,10 @@ data:
     peer-service: "hubble-peer.kube-system.svc.{{ dns_domain }}:443"
     listen-address: :4245
     metrics-listen-address: ":9966"
-    dial-timeout: 
-    retry-timeout: 
-    sort-buffer-len-max: 
-    sort-buffer-drain-timeout: 
+    dial-timeout:
+    retry-timeout:
+    sort-buffer-len-max:
+    sort-buffer-drain-timeout:
     tls-client-cert-file: /var/lib/hubble-relay/tls/client.crt
     tls-client-key-file: /var/lib/hubble-relay/tls/client.key
     tls-server-cert-file: /var/lib/hubble-relay/tls/server.crt