Alternative julia install and openssh

[calvinp0]

• Developer of micromamba advised me to create a condarc-jl.yml file prior to the installation of julia
• Added openssh as apt package so that the containers may be access through ssh for certain use cases

[codecov-commenter]

Codecov Report

Merging #129 (79d384f) into main (2de3b76) will decrease coverage by 0.07%. The diff coverage is 18.18%.

@@            Coverage Diff             @@
##             main     #129      +/-   ##
==========================================
- Coverage   73.46%   73.40%   -0.07%     
==========================================
  Files          22       22              
  Lines        2891     2891              
  Branches      762      725      -37     
==========================================
- Hits         2124     2122       -2     
- Misses        552      553       +1     
- Partials      215      216       +1     

Flag	Coverage Δ
unittests	73.40% <18.18%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
t3/runners/rmg_runner.py	34.37% <0.00%> (ø)
t3/settings/t3_settings.py	100.00% <ø> (ø)
t3/settings/t3_submit.py	100.00% <ø> (ø)
t3/simulate/rmg_constantTP.py	58.41% <0.00%> (ø)
t3/imports.py	30.00% <40.00%> (ø)

... and 1 file with indirect coverage changes

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