update bootstrax to write to locally on ebs + minor updates

Created by: jorana

This pull request updates bootstrax after some initial testing on the six event builders. The most important change is that it now writes on each of the even builders where it can write (locally):

• Added a dictionary of where to write to for each of the six hosts: https://github.com/XENONnT/straxen/commit/9b70a9c9d4ddc59be63402d2b84178fee57af653#diff-2a447f9c8597bfe43fb6b3b0b4c9ee65R81
• Also check that bootstrax can actually write there: https://github.com/XENONnT/straxen/commit/9b70a9c9d4ddc59be63402d2b84178fee57af653#diff-2a447f9c8597bfe43fb6b3b0b4c9ee65R184

Further there are some minor unrelated changes:

• Change some of the multiprocessing features:
  • https://github.com/XENONnT/straxen/commit/9b70a9c9d4ddc59be63402d2b84178fee57af653#diff-2a447f9c8597bfe43fb6b3b0b4c9ee65R202
  • https://github.com/XENONnT/straxen/commit/9b70a9c9d4ddc59be63402d2b84178fee57af653#diff-2a447f9c8597bfe43fb6b3b0b4c9ee65R222
• Updated the ''eb_monitor'' collection in the DAQ-database:
  • https://github.com/XENONnT/straxen/commit/9b70a9c9d4ddc59be63402d2b84178fee57af653#diff-2a447f9c8597bfe43fb6b3b0b4c9ee65R334
• Ran into this error once while processing a lot of 1 minute runs. I haven't been able to reproduce it but I hope this will help:
  • https://github.com/XENONnT/straxen/commit/9b70a9c9d4ddc59be63402d2b84178fee57af653#diff-2a447f9c8597bfe43fb6b3b0b4c9ee65R417