Use all accessible ports for ERT on local queue

[berland]

If not, ERT will pick a port in the default range 51820-51840 for which should be saved for ERT runs over the network. When running tests in parallel, using the limited range exposes the tests to port starvation.

[codecov-commenter]

Codecov Report

Merging #454 (3ee8697) into master (d431cc6) will increase coverage by 0.08%.
Report is 7 commits behind head on master.
The diff coverage is 100.00%.

❗ Current head 3ee8697 differs from pull request most recent head 846f02f. Consider uploading reports for the commit 846f02f to get more accurate results

@@            Coverage Diff             @@
##           master     #454      +/-   ##
==========================================
+ Coverage   95.08%   95.17%   +0.08%     
==========================================
  Files          31       31              
  Lines        4374     4413      +39     
==========================================
+ Hits         4159     4200      +41     
+ Misses        215      213       -2     

Files	Coverage Δ
ecl2df/__init__.py	94.73% <100.00%> (+5.26%)	⬆️
ecl2df/common.py	99.71% <100.00%> (+0.05%)	⬆️
ecl2df/equil.py	100.00% <100.00%> (ø)
ecl2df/grid.py	97.87% <100.00%> (ø)
ecl2df/pillars.py	100.00% <ø> (ø)
ecl2df/summary.py	96.82% <ø> (ø)
ecl2df/trans.py	97.10% <100.00%> (ø)

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[berland]

Superseded by equinor/ert#6280