Match Transport keys to toolnames

[hyperrealist]

This PR fixes #226

• EpicsCATransport: ca_ioc -> epicsca
• EpicsPVATransport: pva_ioc -> epicspva
• TangoTransport: dsr -> tango

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 89.34%. Comparing base (48c688d) to head (afea1df).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/fastcs/transport/tango/transport.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #263   +/-   ##
=======================================
  Coverage   89.34%   89.34%           
=======================================
  Files          46       46           
  Lines        2272     2272           
=======================================
  Hits         2030     2030           
  Misses        242      242           

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