clear RAPTOR and Configuration tutorials notebooks

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Merging #3066 (e4829ce) into devel (5318046) will not change coverage. The diff coverage is n/a.

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  Coverage   43.90%   43.90%           
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[AymenFJA]

multiple_pilots and specifically pilot.00001 only fail with:

 /home/runner/radical.pilot.sandbox/rp.session.fv-az410-569.runner.019649.0000/pilot.0001//bootstrap_0.sh: line 912: /home/runner/radical.pilot.sandbox/rp.session.fv-az410-569.runner.019649.0000/pilot.0001/bin/activate: No such file or directory
 39 Loading of virtual env failed!

[mtitov]

Looks like it is a race condition, and pilots on the same machine can interfere with each other

from bootstrap_0.out

VIRTENV           : /home/runner/radical.pilot.sandbox/ve.local.localhost.1.42.0
/home/runner/radical.pilot.sandbox/rp.session.fv-az410-569.runner.019649.0000/pilot.0001//bootstrap_0.sh: line 1595: cd: /home/runner/radical.pilot.sandbox/ve.local.localhost.1.42.0: No such file or directory
VIRTENV normalized: /home/runner/radical.pilot.sandbox/rp.session.fv-az410-569.runner.019649.0000/pilot.0001

and this does from here https://github.com/radical-cybertools/radical.pilot/blob/7a4b73ee99f029e8689f4b5e305c90ab148e45c0/src/radical/pilot/agent/bootstrap_0.sh#L1594-L1596

and it is possible for some pilot to have incorrect VIRTENV env variable