Always use CLI command to load cRPD license

[mzagozen]

The expected license file location was changed in Junos 22 and later. To keep the code backwards and forwards compatible we use the CLI command to add a license file from a stable location.

Closes #1350

[hellt]

thanks @mzagozen
this lgtm
I presume you tried it with the crpd 23+? I think in general containerlab strives to support the latest releases, to go in a lockstep with the current NOS offerings; with that in mind I think what is important is that newer version runs smoothly, and older ones might be less prioritized in terms of the support

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 16 lines in your changes are missing coverage. Please review.

Project coverage is 53.72%. Comparing base (c5896ac) to head (5bdf63e).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2014      +/-   ##
==========================================
- Coverage   53.77%   53.72%   -0.06%     
==========================================
  Files         160      160              
  Lines       11504    11515      +11     
==========================================
  Hits         6186     6186              
- Misses       4452     4463      +11     
  Partials      866      866              

Files	Coverage Δ
nodes/crpd/crpd.go	1.19% <0.00%> (-0.18%)	⬇️

[mzagozen]

Right, I only have 23.4R1.9 available for testing. I remember using the CLI command way back anyway :)
Like I mentioned in #2013, the SSH config massaging code is now unnecessary, But I guess since it does not interfere with the current latest it may as well remain in place for older versions.