Updated PBC (&PC) to use the new Docker Swarm Client API (v1.0.7)

[bmort]

Description:

• Updated PBC library and image to use skasip-docker-swarm==1.0.7.
• Updated PC image to use new PBC library.

Ready to be merged into master as soon as approved.

Testing instructions:

Start a Configuration Database (Redis) container exposing port 6379 to localhost. ie

docker service create -p 6379:6379 --name=config_db redis:5.0.1-alpine

Unit tests (unchanged by this pull request) can then be run with

./tools/run_tests.sh sip/execution_control/processing_block_controller
./tools/run_tests.sh sip/execution_control/processing_controller

Types of changes

• [ ] Bug fix (non-breaking change that fixes an issue)
• [x] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] The code follows the code style of this project.
• [ ] The changes require a documentation update.
• [ ] Documentation has been updated accordingly.
• [x] Tests cover all changes in this PR.
• [x] All new and existing tests passed.

[codecov[bot]]

Codecov Report

Merging #64 into master will not change coverage. The diff coverage is 100%.

@@           Coverage Diff           @@
##           master      #64   +/-   ##
=======================================
  Coverage   85.04%   85.04%           
=======================================
  Files          62       62           
  Lines        2701     2701           
  Branches      224      224           
=======================================
  Hits         2297     2297           
  Misses        353      353           
  Partials       51       51

Impacted Files	Coverage Δ
...ution_control/processing_block_controller/setup.py	0% <ø> (ø)	:arrow_up:
...ntrol/processing_block_controller/sip_pbc/tasks.py	88.13% <100%> (ø)	:arrow_up:
...control/processing_controller/scheduler/release.py	100% <100%> (ø)	:arrow_up:
...rol/processing_block_controller/sip_pbc/release.py	100% <100%> (ø)	:arrow_up:

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