Add env variable into suite bin packing

Author: ssteele110

ruby/lib/ci/queue/strategy/suite_bin_packing.rb

@@ -29,8 +29,8 @@ def initialize(config, redis: nil)
                            {}
                          end
           # Enforce the max chunk duration falls within this range. 
-          @minimum_max_duration = config&.suite_max_duration || 120_000
-          @maximum_max_duration = config&.suite_max_duration || 300_000
+          @minimum_max_duration = config&.suite_minimum_max_chunk_duration || 120_000
+          @maximum_max_duration = config&.suite_maximum_max_chunk_duration || 300_000
           @fallback_duration = config&.timing_fallback_duration || 100.0
           @buffer_percent = config&.suite_buffer_percent || 10
 

ruby/lib/minitest/queue/runner.rb

@@ -512,6 +512,24 @@ def parser
             queue_config.max_duration = max
           end
 
+          help = <<~EOS
+            Defines a lower-bound for the max chunk duration in seconds.
+            Defaults to 120 seconds.
+          EOS
+          opts.separator ""
+          opts.on('--minimum-max-chunk-duration MILLISECONDS', Integer, help) do |min|
+            queue_config.minimum_max_chunk_duration = min
+          end
+
+          help = <<~EOS
+            Defines an upper-bound for the max chunk duration in seconds.
+            Defaults to 300 seconds.
+          EOS
+          opts.separator ""
+          opts.on('--maximum-max-chunk-duration MILLISECONDS', Integer, help) do |max|
+            queue_config.maximum_max_chunk_duration = max
+          end
+
           help = <<~EOS
             Defines how many user test tests can be fail.
             Defaults to none.