[MacPorts] #59652: update py-language-server to 0.30.0

[MacPorts]

#59652: update py-language-server to 0.30.0
---------------------------------+------------------------
  Reporter:  pmetzger            |      Owner:  reneeotten
      Type:  update              |     Status:  accepted
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:
Resolution:                      |   Keywords:
      Port:  py-language-server  |
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Comment (by reneeotten):

 In [changeset:"585a3607c17f6a6611de51112ed9b6b296074124/macports-ports"
 585a3607c17f6a6611de51112ed9b6b296074124/macports-ports] (master):
 {{{
 #!ConfigurableCommitTicketReference repository="macports-ports"
 revision="585a3607c17f6a6611de51112ed9b6b296074124"
 py-language-server: update to 0.30.0

 - remove duplicate py-future dependency, only needed for PY27

 See: https://trac.macports.org/ticket/59652
 }}}

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Ticket URL: <https://trac.macports.org/ticket/59652#comment:2>
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