chore(deps): update dependency fluentd to v1.18.0

Author: renovate[bot]

logs-concentrator/Gemfile

@@ -7,4 +7,4 @@ git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 gem "fluent-plugin-elasticsearch", "5.4.4"
 gem "fluent-plugin-opensearch", "1.1.5"
 gem "fluent-plugin-prometheus", "2.2.1"
-gem "fluentd", "1.17.1"
+gem "fluentd", "1.18.0"

logs-concentrator/Gemfile.lock

@@ -53,7 +53,7 @@ GEM
     fluent-plugin-prometheus (2.2.1)
       fluentd (>= 1.9.1, < 2)
       prometheus-client (>= 2.1.0)
-    fluentd (1.17.1)
+    fluentd (1.18.0)
       base64 (~> 0.2)
       bundler
       cool.io (>= 1.4.5, < 2.0.0)
@@ -72,8 +72,8 @@ GEM
     http_parser.rb (0.8.0)
     jmespath (1.6.2)
     json (2.7.6)
-    logger (1.6.6)
-    msgpack (1.7.5)
+    logger (1.7.0)
+    msgpack (1.8.0)
     multi_json (1.15.0)
     net-http (0.4.1)
       uri
@@ -90,7 +90,7 @@ GEM
     strptime (0.2.5)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    tzinfo-data (1.2024.2)
+    tzinfo-data (1.2025.2)
       tzinfo (>= 1.0.0)
     uri (0.13.2)
     webrick (1.9.1)
@@ -104,7 +104,7 @@ DEPENDENCIES
   fluent-plugin-elasticsearch (= 5.4.4)
   fluent-plugin-opensearch (= 1.1.5)
   fluent-plugin-prometheus (= 2.2.1)
-  fluentd (= 1.17.1)
+  fluentd (= 1.18.0)
 
 BUNDLED WITH
    2.5.22

logs-dispatcher/Gemfile

@@ -18,4 +18,4 @@ gem "fluent-plugin-route", "1.0.0"
 gem "fluent-plugin-s3", "1.8.3"
 gem "fluent-plugin-splunk-enterprise", "0.10.2"
 gem "fluent-plugin-sumologic_output", "1.10.0"
-gem "fluentd", "1.17.1"
+gem "fluentd", "1.18.0"

logs-dispatcher/Gemfile.lock

@@ -89,7 +89,7 @@ GEM
     fluent-plugin-sumologic_output (1.10.0)
       fluentd
       httpclient
-    fluentd (1.17.1)
+    fluentd (1.18.0)
       base64 (~> 0.2)
       bundler
       cool.io (>= 1.4.5, < 2.0.0)
@@ -186,7 +186,7 @@ DEPENDENCIES
   fluent-plugin-s3 (= 1.8.3)
   fluent-plugin-splunk-enterprise (= 0.10.2)
   fluent-plugin-sumologic_output (= 1.10.0)
-  fluentd (= 1.17.1)
+  fluentd (= 1.18.0)
 
 BUNDLED WITH
    2.5.22