feat: Update devnet-5 example (#863)

.github/tests/pectra-devnet-5.yaml.norun

 participants:
   - el_type: besu
-    el_image: ethpandaops/besu:24.12-develop-8c5aabe
+    el_image: ethpandaops/besu:24.12-develop-b143a56
     cl_type: teku
     cl_image: consensys/teku:develop
-    el_log_level: "DEBUG"
-
+    el_log_level: "debug"
+    count: 3
 network_params:
   electra_fork_epoch: 1
   min_validator_withdrawability_delay: 1
@@ -13,6 +13,12 @@ network_params:
   num_validator_keys_per_node: 256
 additional_services:
   - dora
+  - spamoor_blob
+  - tx_spammer
 dora_params:
   image: "ethpandaops/dora:master-latest"
 snooper_enabled: true
+spamoor_blob_params:
+  throughput: 10 
+  max_blobs: 2  
+  max_pending: 40 
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