Error handling: Show data stream at "debug" level, not "warn" (#1811)

* Avoid dumping the whole stream at warn level when upstream unavailable

Signed-off-by: JamesJJ <jj@fcg.fyi>

* Version 1.2.10

Signed-off-by: JamesJJ <jj@fcg.fyi>

fluentd/fluent-plugin-grafana-loki/fluent-plugin-grafana-loki.gemspec

@@ -4,7 +4,7 @@ $LOAD_PATH.push File.expand_path('lib', __dir__)
 
 Gem::Specification.new do |spec|
   spec.name    = 'fluent-plugin-grafana-loki'
-  spec.version = '1.2.9'
+  spec.version = '1.2.10'
   spec.authors = %w[woodsaj briangann cyriltovena]
   spec.email   = ['awoods@grafana.com', 'brian@grafana.com', 'cyril.tovena@grafana.com']
 

fluentd/fluent-plugin-grafana-loki/lib/fluent/plugin/out_loki.rb

@@ -151,7 +151,7 @@ module Fluent
                           'res=nil'
                         end
           log.warn "failed to #{req.method} #{@uri} (#{res_summary})"
-          log.warn Yajl.dump(body)
+          log.debug Yajl.dump(body)
 
         end
       end