4.5.0

• [core] feat: Deprecate captureEvent, prefer sendEvent for transports. sendEvent now takes a string (body)
  instead of Event object.
• [core] feat: Use correct buffer for requests in transports
• [core] feat: (beta) provide esm build
• [core] ref: Change way how transports are initialized
• [core] ref: Rename RequestBuffer to PromiseBuffer, also introduce limit
• [core] ref: Make sure that captureMessage input is a primitive
• [core] fix: Check if value is error object in extraErrorData integration
• [browser] fix: Prevent empty exception values
• [browser] fix: Permission denied to access property name
• [node] feat: Add file cache for providing pre/post context in frames
• [node] feat: New option frameContextLines, if set to 0 we do not provide source code pre/post context, default is
  7 lines pre/post
• [utils] fix: Use custom serializer inside serialize method to prevent circular references