use single quotes wherever possible

defaults/main.yml

@@ -53,7 +53,7 @@ neofs_ir__pprof_allow: []
 neofs_ir__pprof_group_allow: []
 neofs_ir__pprof_host_allow: []
 
-neofs_ir__blockchain_database_path: "{{ neofs_ir__data_dir }}/morph.bolt"
+neofs_ir__blockchain_database_path: '{{ neofs_ir__data_dir }}/morph.bolt'
 neofs_ir__blockchain_notary_disabled: False
 neofs_ir__blockchain_time_per_block: '15s'
 neofs_ir__blockchain_magic: '735783775'
@@ -69,7 +69,7 @@ neofs_ir__validators:
       - '039ba959e0ab6dc616df8b803692f1c30ba9071b76b05535eb994bf5bbc402ad5f'
       - '035a2a18cddafa25ad353dea5e6730a1b9fcb4b918c4a0303c4387bb9c3b816adf'
       - '031f4d9c66f2ec348832c48fd3a16dfaeb59e85f557ae1e07f6696d0375c64f97b'
-neofs_ir__consensus_committee: "{{ neofs_ir__validators }}"
+neofs_ir__consensus_committee: '{{ neofs_ir__validators }}'
 
 neofs_ir__mainnet_endpoints:
   - address: 'ws://localhost:20332/ws'
@@ -79,21 +79,21 @@ neofs_ir__morph_endpoints:
 
 neofs_ir__external_sidechain: False
 neofs_ir__internal_sidechain_config:
-    magic: "{{ neofs_ir__blockchain_magic }}"
-    committee: "{{ neofs_ir__consensus_committee }}"
+    magic: '{{ neofs_ir__blockchain_magic }}'
+    committee: '{{ neofs_ir__consensus_committee }}'
     storage:
       type: boltdb
-      path: "{{ neofs_ir__blockchain_database_path }}"
-    notary_disabled: "{{ neofs_ir__blockchain_notary_disabled }}"
-    time_per_block: "{{ neofs_ir__blockchain_time_per_block }}"
+      path: '{{ neofs_ir__blockchain_database_path }}'
+    notary_disabled: '{{ neofs_ir__blockchain_notary_disabled }}'
+    time_per_block: '{{ neofs_ir__blockchain_time_per_block }}'
     max_traceable_blocks: 2102400
-    seed_nodes: "{{ neofs_ir__blockchain_seed_nodes }}"
+    seed_nodes: '{{ neofs_ir__blockchain_seed_nodes }}'
     rpc:
-      listen: "{{ neofs_ir__blockchain_rpc_addresses }}"
+      listen: '{{ neofs_ir__blockchain_rpc_addresses }}'
     p2p:
       dial_timeout: 3s
       proto_tick_interval: 2s
-      listen: "{{ neofs_ir__blockchain_p2p_addresses }}"
+      listen: '{{ neofs_ir__blockchain_p2p_addresses }}'
       peers:
         min: 4
         max: 100
@@ -113,7 +113,7 @@ neofs_ir__raw_config:
     password: '{{ neofs_ir__wallet_password }}'
 
   morph:
-    validators: "{{ neofs_ir__validators }}"
+    validators: '{{ neofs_ir__validators }}'
 
   mainnet:
     endpoint: