Add Ansible task to fetch nitro node config file (#8)

Part of [Automate testnet nitro deployments using Ansible](https://www.notion.so/Automate-testnet-nitro-deployments-using-Ansible-0d15579430204b8daba9a8aa31e07568)
- Added ansible tasks to:
  - Install yq
  - Download nitro node config file
- Modified playbooks to handle prompts when cloning repositories

Co-authored-by: Adw8 <adwaitgharpure@gmail.com>
Reviewed-on: cerc-io/testnet-ops#8

l2-setup/run-optimism.yml

@@ -21,14 +21,22 @@
         group: "{{ansible_user}}"
         state: directory
         recurse: yes
-      become: yes
 
     - name: Clone fixturenet-optimism-stack
-      command: laconic-so fetch-stack git.vdb.to/cerc-io/fixturenet-optimism-stack --pull
+      expect:
+        command: laconic-so fetch-stack git.vdb.to/cerc-io/fixturenet-optimism-stack --pull
+        responses:
+          "Are you sure you want to continue connecting \\(yes/no/\\[fingerprint\\]\\)\\?": "yes"
+      timeout: 300
       ignore_errors: yes
 
     - name: Clone required repositories for fixturenet-optimism
-      command: laconic-so --stack ~/cerc/fixturenet-optimism-stack/stack/fixturenet-optimism setup-repositories --pull
+      expect:
+        command: laconic-so --stack {{ ansible_env.HOME }}/cerc/fixturenet-optimism-stack/stack/fixturenet-optimism setup-repositories --pull
+        responses:
+          "Are you sure you want to continue connecting \\(yes/no/\\[fingerprint\\]\\)\\?": "yes"
+      timeout: 300
+      ignore_errors: yes
 
     - name: Build container images for L2
       command: laconic-so --stack ~/cerc/fixturenet-optimism-stack/stack/fixturenet-optimism build-containers --force-rebuild