networkx 2.8.3 will raise errors if certain characters, such as a colon, in the node names and the string is not quoted.
This patch double quotes flow, node, and task string representations to make sure there are not issues with these characters occuring in the names.

Story: 2010083
Change-Id: Ib0941cddf14dde5d6b9f97fe0224d6e6f3975226

This library no longer supports Python 2, thus usage of six can be
removed. This also removes workaround about pickle library used in
Python 2 only.

Change-Id: I19d298cf0f402d65f0b142dea0bf35cf992332a9

failure and revert_failure fields in atomdetails is defined as a JSON type,
but its data type is 'text' in mysql, which is limited to 64kbytes.
JSON data type should have the same size as a LONGTEXT.

Closes-Bug: #1959243
Change-Id: I65b6a6d896d3e8aad871dc19b0f8d0eddf48bdd6

Use fasteners 0.17.3, it fixes a deadlock issue.

Also fixed a new error when building the doc.

Depends-On: https://review.opendev.org/c/openstack/requirements/+/826318

Change-Id: I667725886ea424cf62c5b7a07a2e58ecb3399e0c

When catching that a redis buffer is not formatted correctly,
_fetch_jobs now deletes the data from the hashmap, so the same error
will not occur during the next call to the function.

The commit also adds JobFailure in the list of caught exceptions (might
be raised by _loads) in _fetch_jobs

Closes-Bug: #1949950

Change-Id: I9078086cd4c3dbfa954422dfa3d5b19fefd7264f

Change-Id: I66b9937df5c58561792328e08f836dc05927e7f1

The LOG.warn method is deprecated[1] and the LOG.warning method should
be used instead.

[1] https://docs.python.org/3/library/logging.html#logging.warning

Change-Id: I4321a489c56eb1aa650e776ee35d8f88d4d8910c