use dig instead of .& check

Author: aknarts

deployments/chef/templates/splunk-otel-collector.conf.erb

@@ -2,7 +2,7 @@
 SPLUNK_CONFIG=<%= node['splunk_otel_collector']['collector_config_dest'] %>
 
 # Access token to authenticate requests.
-SPLUNK_ACCESS_TOKEN=<%= node.run_state['splunk_otel_collector']&.[]('splunk_access_token') || node['splunk_otel_collector']['splunk_access_token'] %>
+SPLUNK_ACCESS_TOKEN=<%= node.run_state.dig('splunk_otel_collector', 'splunk_access_token') || node['splunk_otel_collector']['splunk_access_token'] %>
 
 # Which realm to send the data to.
 SPLUNK_REALM=<%= node['splunk_otel_collector']['splunk_realm'] %>
@@ -17,7 +17,7 @@ SPLUNK_INGEST_URL=<%= node['splunk_otel_collector']['splunk_ingest_url'] %>
 SPLUNK_HEC_URL=<%= node['splunk_otel_collector']['splunk_hec_url'] %>
 
 # Splunk HEC token.
-SPLUNK_HEC_TOKEN=<%= node.run_state['splunk_otel_collector']&.[]('splunk_hec_token') || node['splunk_otel_collector']['splunk_hec_token'] %>
+SPLUNK_HEC_TOKEN=<%= node.run_state.dig('splunk_otel_collector', 'splunk_hec_token') || node['splunk_otel_collector']['splunk_hec_token'] %>
 
 # Total memory in MIB to allocate to the collector.
 # Automatically configures the memory limit.