Pin ethereum-package version to 4.2.0 (#6315)

* Pin `ethereum-package` version, update das kurtosis config file and remove outdated config files.

scripts/local_testnet/network_params_das.yaml

@@ -0,0 +1,21 @@
+participants:
+  - cl_type: lighthouse
+    cl_image: lighthouse:local
+    cl_extra_params:
+      - --subscribe-all-data-column-subnets
+      - --target-peers=3
+    count: 2
+  - cl_type: lighthouse
+    cl_image: lighthouse:local
+    cl_extra_params:
+      - --target-peers=3
+    count: 2
+network_params:
+  eip7594_fork_epoch: 0
+  seconds_per_slot: 6
+snooper_enabled: false
+global_log_level: debug
+additional_services:
+  - dora
+  - goomy_blob
+  - prometheus_grafana