Add genesis sync test to CI (#7561)

* #7550

Use existing code from  @jimmygchen in #7530 and modify for genesis sync test. Thanks @jimmygchen !

scripts/tests/genesis-sync-config-electra.yaml

@@ -0,0 +1,22 @@
+# Kurtosis config file for testing sync on a local devnet.
+participants:
+  - cl_type: lighthouse
+    cl_image: lighthouse:local
+    count: 2
+  # nodes without validators, used for testing sync.
+  - cl_type: lighthouse
+    cl_image: lighthouse:local
+    supernode: true # no supernode in Electra, this is for future proof
+    validator_count: 0
+  - cl_type: lighthouse
+    cl_image: lighthouse:local
+    supernode: false
+    validator_count: 0
+network_params:
+  seconds_per_slot: 6
+  electra_fork_epoch: 0
+  preset: "minimal"
+additional_services:
+  - tx_fuzz
+  - spamoor
+global_log_level: debug