Update local testnet scripts for the fulu fork (#8489)

* Remove `fulu-devnet-3` testing on CI
* Delete `scripts/local_testnet/network_params_das.yaml` and consolidate it into the main `network_params.yaml` file we use on CI
* Delete enclave before building image, so it doesn't cause slow image building.


  


Co-Authored-By: Jimmy Chen <jchen.tc@gmail.com>

scripts/local_testnet/network_params.yaml

@@ -1,19 +1,37 @@
 # Full configuration reference [here](https://github.com/ethpandaops/ethereum-package?tab=readme-ov-file#configuration).
 participants:
-  - el_type: geth
-    el_image: ethereum/client-go:latest
-    cl_type: lighthouse
+  - cl_type: lighthouse
     cl_image: lighthouse:local
+    el_type: geth
+    el_image: ethereum/client-go:latest
+    supernode: true
     cl_extra_params:
       - --target-peers=3
-    count: 4
+    count: 2
+  - cl_type: lighthouse
+    cl_image: lighthouse:local
+    el_type: geth
+    el_image: ethereum/client-go:latest
+    supernode: false
+    cl_extra_params:
+      - --target-peers=3
+    count: 2
 network_params:
-  electra_fork_epoch: 0
-  seconds_per_slot: 3
-global_log_level: debug
+  fulu_fork_epoch: 0
+  seconds_per_slot: 6
 snooper_enabled: false
+global_log_level: debug
 additional_services:
   - dora
   - spamoor
   - prometheus_grafana
   - tempo
+spamoor_params:
+  image: ethpandaops/spamoor:master
+  spammers:
+    - scenario: eoatx
+      config:
+        throughput: 200
+    - scenario: blobs
+      config:
+        throughput: 20