升级rocketmq到4.8.0，并且支持环境变量优先配置

[zoemak]

不知出于何种考虑，deployer支持环境变量的配置，但是connector的几个插件不支持？
都是写在同一个配置（cannal.properties）的，如果一些配置支持环境变量，一些配置不支持环境变量感觉有点奇怪。

支持环境变量对容器化和集群化的配置拓展性会更强点吧。

顺便升级了一下rocketmq的版本，毕竟4.8.0也发布挺久了。

[CLAassistant]

All committers have signed the CLA.

[codecov-io]

Codecov Report

Merging #3450 (7316c0e) into master (8cfb07f) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@             Coverage Diff             @@
##             master   #3450      +/-   ##
===========================================
- Coverage      4.81%   4.81%   -0.01%     
  Complexity      239     239              
===========================================
  Files           395     396       +1     
  Lines         35698   35710      +12     
  Branches       5553    5556       +3     
===========================================
  Hits           1720    1720              
- Misses        33727   33739      +12     
  Partials        251     251              

Impacted Files	Coverage Δ	Complexity Δ
...baba/otter/canal/common/utils/PropertiesUtils.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...al/connector/core/producer/AbstractMQProducer.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...l/connector/kafka/producer/CanalKafkaProducer.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...ector/rabbitmq/consumer/CanalRabbitMQConsumer.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...ector/rabbitmq/producer/CanalRabbitMQProducer.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...ector/rocketmq/producer/CanalRocketMQProducer.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)

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[agapple]

tks