switch back to original 3 branch layout of nodes

Since with release of `1.5.0` the `stable` branch has all the necessary changes:
https://github.com/status-im/nimbus-eth2/releases/tag/v1.5.0

Signed-off-by: Jakub Sokołowski <jakub@status.im>

ansible/group_vars/nimbus.prater.yml

@@ -1,7 +1,6 @@
 ---
-# TEMPORARY switch for Prater Altair transition
-beacon_node_repo_branch: 'unstable' # '{{ node.branch }}'
 beacon_node_network: 'prater'
+beacon_node_repo_branch: '{{ node.branch }}'
 # TODO Drop this once all nodes have an number.
 service_number: '{{ node.get("num", False) | ternary(("-%02d"|format(node.get("num", 0))), "") }}'
 beacon_node_service_name: 'beacon-node-{{ beacon_node_network }}-{{ node.branch }}{{ service_number }}'

ansible/group_vars/nimbus.pyrmont.yml

@@ -1,9 +1,7 @@
 ---
-# TEMPORARY switch for Prater Altair transition
-beacon_node_repo_branch: 'unstable'
-# TODO Simplify this, maybe change branch name.
-#beacon_node_repo_branch: '{{ node.branch is search("libp2p") | ternary("nim-libp2p-auto-bump-unstable", node.branch) }}'
 beacon_node_network: 'pyrmont'
+beacon_node_repo_branch: '{{ node.branch is search("libp2p") | ternary("nim-libp2p-auto-bump-unstable", node.branch) }}'
+# TODO Simplify this, maybe change branch name.
 beacon_node_log_level: 'INFO'
 beacon_node_service_name: 'beacon-node-{{ beacon_node_network }}-{{ node.branch }}'
 # Ports

ansible/mainnet.yml

@@ -30,9 +30,8 @@
     - include_role: name=infra-role-beacon-node-linux
       tags: beacon-node
       vars:
-        # TEMPORARY switch for Mainnet Altair transition
         beacon_node_service_name: 'beacon-node-{{ beacon_node_network }}-{{ node.branch }}-{{ "%02d"|format(node.idx) }}'
-        beacon_node_repo_branch: 'unstable'
+        beacon_node_repo_branch: '{{ node.branch }}'
         beacon_node_threads: '{{ (node.branch == "testing") | ternary(4, 1) }}'
         beacon_node_build_frequency: '{{ node.build_frequency }}'
         beacon_node_open_firewall: '{{ node.open_firewall | default(true) }}'

ansible/requirements.yml

@@ -46,7 +46,7 @@
 
 - name: infra-role-beacon-node-linux
   src: git@github.com:status-im/infra-role-beacon-node-linux.git
-  version: 822808ca069cc49ab02f6e0ddb57af05efb6bc99
+  version: cb79f67a8da89b0e519d3267462a19af0d6e087d
   scm: git
 
 - name: infra-role-beacon-node-windows