chore(deps): bump the bundler group across 2 directories with 1 update

Bumps the bundler group with 1 update in the /logs-concentrator directory: [fluentd](https://github.com/fluent/fluentd).
Bumps the bundler group with 1 update in the /logs-dispatcher directory: [fluentd](https://github.com/fluent/fluentd).


Updates `fluentd` from 1.17.1 to 1.18.0
- [Release notes](https://github.com/fluent/fluentd/releases)
- [Changelog](https://github.com/fluent/fluentd/blob/master/CHANGELOG.md)
- [Commits](fluent/fluentd@v1.17.1...v1.18.0)

Updates `fluentd` from 1.17.1 to 1.18.0
- [Release notes](https://github.com/fluent/fluentd/releases)
- [Changelog](https://github.com/fluent/fluentd/blob/master/CHANGELOG.md)
- [Commits](fluent/fluentd@v1.17.1...v1.18.0)

---
updated-dependencies:
- dependency-name: fluentd
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: bundler
- dependency-name: fluentd
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: bundler
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

logs-concentrator/Gemfile

@@ -7,4 +7,4 @@ git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 gem "fluent-plugin-elasticsearch", "5.4.3"
 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

@@ -13,7 +13,7 @@ GEM
     base64 (0.2.0)
     concurrent-ruby (1.3.5)
     cool.io (1.9.0)
-    csv (3.3.3)
+    csv (3.3.4)
     drb (2.2.1)
     elastic-transport (8.3.5)
       faraday (< 3)
@@ -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 (0.13.1)
     webrick (1.9.1)
@@ -104,7 +104,7 @@ DEPENDENCIES
   fluent-plugin-elasticsearch (= 5.4.3)
   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

@@ -32,7 +32,7 @@ GEM
     concurrent-ruby (1.3.5)
     connection_pool (2.4.1)
     cool.io (1.9.0)
-    csv (3.3.3)
+    csv (3.3.4)
     domain_name (0.6.20240107)
     drb (2.2.1)
     ffi (1.17.1-x86_64-linux-gnu)
@@ -87,7 +87,7 @@ 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)
@@ -127,7 +127,7 @@ GEM
     llhttp-ffi (0.5.0)
       ffi-compiler (~> 1.0)
       rake (~> 13.0)
-    logger (1.6.6)
+    logger (1.7.0)
     mime-types (3.6.0)
       logger
       mime-types-data (~> 3.2015)
@@ -184,7 +184,7 @@ 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