Adopt token for WMAgent, test stage-in

[khurtado]

Impact of the new feature
Enable WMAgent to work with token authentication for job submission, deal with stage-in first.

Is your feature request related to a problem? Please describe.
We need to support tokens for job submission,

Describe the solution you'd like
This is related to:
#12144

• Configure condor with tokens,
• Submit jobs with both x509 and tokens
• Disable x509 proxy from environment
• Test tokens for stage-in only.

Describe alternatives you've considered
Keep x509 proxy.

Additional context
Add any other context or screenshots about the feature request here.

[khurtado]

@amaltaro @anpicci As agreed in MM, I created a different ticket for the stage-in only test.

[khurtado]

@anpicci #12196 worked for stage-in.

I have re-enabled the X509 proxy in the environment so stage-out can be tested in vocms0265.

[khurtado]

#12196 Is working (code review pending).
However, the code cannot be merged until all condor schedds:

• Have a proper e.g.: puppet setup with the token installation of RPMs and authentication configuration (this was done as a local change)
• The first token is created manually (current setup) or the new CERN service to do this automatically is finished (I forgot the name).

In short, this issue will be put on hold until the production condor setup development and deployment is finished.