[MacPorts] #61100: pipx @0.15.1.3_0+python38: update to 0.15.5.1

[MacPorts]

#61100: pipx @0.15.1.3_0+python38: update to 0.15.5.1
------------------------+--------------------
 Reporter:  mikenerone  |      Owner:  (none)
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.6.3
 Keywords:              |       Port:  pipx
------------------------+--------------------
 Should be a straightforward update. The tool's new {{{--suffix}}}
 parameter is particularly handy. See
 https://pipxproject.github.io/pipx/changelog/

-- 
Ticket URL: <https://trac.macports.org/ticket/61100>
MacPorts <https://www.macports.org/>
Ports system for macOS