v0.5.4

What's Changed

• feat: transformer template support json path by @xdlbdy in #349
• feat: abstract cluster operation by @wenfengwang in #338
• feat: add ValidateSubscription in gateway by @wenfengwang in #351
• fix: controller can not start by @wenfengwang in #354
• feat: add transformer function condition if by @xdlbdy in #353
• fix: the route cannot be updated after the controller leader switched by @hwjiangkai in #356
• feat: transformer function struct by @xdlbdy in #357
• feat: add function render_array by @xdlbdy in #358
• feat: support push ordered event by @xdlbdy in #360
• feat: add function length by @xdlbdy in #364

Full Changelog: v0.5.3...v0.5.4