Improvements:

• Show the Phpactor version in the LSP phpactor/status response @dantleech
• worse:analyse writes its progress to STDERR, and its --format=json output
  now reports the line, column, diagnostic code and a readable severity #3061
  @AJenbo

Bug fixes:

• Fix false positives in analyser ]#3063 @AJenbo
• Fix functions declared in the source code passed to the reflector being
  reported as not found (e.g. every function declared and called in the same
  file when running worse:analyse) #3061 @AJenbo.