feat(craft): Add symbol-collector target

[iker-barriocanal]

This PR adds the symbol-collector target to support getsentry/craft#266. It also changes the target order, so that:

• symbol-collector runs before maven, since the former is reentrant and the latter isn't.
• github and registry targets go after symbol-collector and maven, since the first two should only be run once the actual release has been made.

#skip-changelog

[codecov-commenter]

Codecov Report

Merging #1592 (6b6763f) into main (3739f67) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #1592   +/-   ##
=========================================
  Coverage     76.02%   76.02%           
  Complexity     1974     1974           
=========================================
  Files           198      198           
  Lines          6837     6837           
  Branches        680      680           
=========================================
  Hits           5198     5198           
  Misses         1306     1306           
  Partials        333      333           

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[bruno-garcia]

Nice!

[marandaneto]

@iker-barriocanal requires https://github.com/getsentry/craft to be released, and updating https://github.com/getsentry/sentry-java/blob/main/.craft.yml#L1 if necessary, right now it requires building craft manually