Upgrade to mina sshd 2.2.0

[sverhoeven]

As it contains the encrypted host key fix, so we no longer need our own fork

Refs #588

[codecov-io]

Codecov Report

Merging #646 into master will decrease coverage by 0.07%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #646      +/-   ##
============================================
- Coverage     87.03%   86.95%   -0.08%     
  Complexity     1831     1831              
============================================
  Files           111      111              
  Lines          5143     5143              
  Branches        764      764              
============================================
- Hits           4476     4472       -4     
- Misses          456      460       +4     
  Partials        211      211

Flag	Coverage Δ	Complexity Δ
#fixedclientenvironment	26.21% <66.66%> (ø)	487 <0> (ø)	⬇️
#integration	57.22% <33.33%> (+0.03%)	1019 <1> (+1)	⬆️
#livelocal	20.74% <0%> (+0.05%)	385 <0> (+3)	⬆️
#unit	61.48% <0%> (-0.08%)	1428 <0> (+1)

Impacted Files	Coverage Δ	Complexity Δ
...enter/xenon/adaptors/shared/ssh/SSHConnection.java	78.12% <100%> (ø)	10 <1> (ø)	⬇️
...iencecenter/xenon/adaptors/shared/ssh/SSHUtil.java	75.95% <100%> (ø)	35 <0> (ø)	⬇️
...adaptors/schedulers/ssh/SshInteractiveProcess.java	93.1% <0%> (-6.9%)	18% <0%> (ø)

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