Autonity Oracle Server v0.2.7

What's Changed

• feature, add prometheus metrics http exposer service. by @Jason-Zhangxin-Chen in #88
• fix, plugin config update does not work with relative path of config file. by @Jason-Zhangxin-Chen in #90
• fix, fix the ratio computing of uniswqp pair. by @Jason-Zhangxin-Chen in #96
• config, update default config of bakerloo amm plugin with finalized c… by @Jason-Zhangxin-Chen in #91
• a few code refactorings and improvements for oracle server by @Jason-Zhangxin-Chen in #89
• versioning with v0.2.7 by @Jason-Zhangxin-Chen in #97

Full Changelog: v0.2.6...v0.2.7