chore: increase pebble cert period to 300

Author: akrem-chabchoub

.github/workflows/beekeeper.yml

@@ -28,7 +28,7 @@ env:
   P2P_WSS_ENABLE: true
   PEBBLE_IMAGE_TAG: "2.9.0"
   P2P_FORGE_IMAGE_TAG: "v0.7.0"
-  PEBBLE_CERTIFICATE_VALIDITY_PERIOD: "60"
+  PEBBLE_CERTIFICATE_VALIDITY_PERIOD: "300"
 jobs:
   init:
     name: Init