checkout_externals fails due to svn access of GitHub repositories

[gdicker1]

Since SVN access of GitHub repos was sunset on Jan 8th (refer to blog post), clones of EarthWorksOrg/CAM fail because cosp2, clubb, and silhs externals still use svn protocols.

This is fixed in ESCOMP/CAM PR#913 which has been merged as cam6_3_135.

As far as I know, the issues #945 and #881 from ESCOMP/CAM still haven't been fixed with NVHPC compiler so I propose to do a narrow merge of only the changes from cam6_3_135 as soon as possible.

[gdicker1]

Example failure:

> ./manage_externals/checkout_externals
Processing externals description file : Externals.cfg (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM)
Processing externals description file : Externals_CAM.cfg (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM)
Processing externals description file : Externals_HCO.cfg (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM/src/hemco)
Processing externals description file : .gitmodules (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM/src/hemco/HEMCO)
Checking local status of required & optional components: ccs_config, cice5, cice6, cmeps, cdeps, cpl7, share, mct, parallelio, cime, cism, clm, fms, mosart, rtm, cam, chem_proc, carma, cosp2, clubb, silhs, pumas, pumas-frozen, ali_arms, atmos_phys, atmos_cubed_sphere, mpas, hemco, hemco_src, docs/source/geos-chem-shared-docs, 
Checking out externals: cam, Processing externals description file : Externals_CAM.cfg (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM)
Processing externals description file : Externals_HCO.cfg (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM/src/hemco)
Processing externals description file : .gitmodules (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM/src/hemco/HEMCO)
Checking out externals: chem_proc, atmos_phys, atmos_cubed_sphere, mpas, hemco, Processing externals description file : Externals_HCO.cfg (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM/src/hemco)
Processing externals description file : .gitmodules (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM/src/hemco/HEMCO)
Checking out externals: hemco_src, Processing externals description file : .gitmodules (/glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM/src/hemco/HEMCO)
Checking out externals: docs/source/geos-chem-shared-docs, 

ali_arms, carma, clubb, 
ERROR: Failed with output:
    svn: E170013: Unable to connect to a repository at URL 'https://github.com/larson-group/clubb_release/tags/clubb_4ncar_20221129_59cb19f_20230330_branchtag/src/CLUBB_core'
    svn: E160013: '/larson-group/clubb_release/tags/clubb_4ncar_20221129_59cb19f_20230330_branchtag/src/CLUBB_core' path not found

ERROR: In directory
    /glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2025Jan18_EWOrgCAM_PR8/CAM/src/physics/carma/base
Process did not run successfully; returned status 1:
    svn checkout --quiet https://github.com/larson-group/clubb_release/tags/clubb_4ncar_20221129_59cb19f_20230330_branchtag/src/CLUBB_core /glade/work/gdicker/EarthWorks/EWRepo_PullRequests/2024Jan18_EWOrgCAM_PR8/CAM/src/physics/clubb
See above for output from failed command.

[gdicker1]

With PR #10 merged and added to EarthWorksOrg/EarthWorks PR #19, this is closed. But this does make it difficult to copy and check out older versions of EarthWorks any day after January 8th, 2024