refactor: worker tests, cargo nextest, and better handle on workflow progress

[zeeshanlakhani]

Includes:

• foregin_key relationships and join table for many to many workflow(s) to receipts(s)
• make progress defined by receipts (as Cids) completed
• handling of db, fallback to libp2p for workflow information and progress
• tests, tests, tests

[codecov]

Codecov Report

Merging #137 (ce9dbaf) into main (f6c5671) will increase coverage by 1.71%.
The diff coverage is 49.53%.

@@            Coverage Diff             @@
##             main     #137      +/-   ##
==========================================
+ Coverage   47.76%   49.47%   +1.71%     
==========================================
  Files          41       42       +1     
  Lines        1721     2001     +280     
  Branches      421      516      +95     
==========================================
+ Hits          822      990     +168     
- Misses        638      693      +55     
- Partials      261      318      +57     

Impacted Files	Coverage Δ
homestar-runtime/src/lib.rs	100.00% <ø> (ø)
homestar-runtime/src/main.rs	4.34% <0.00%> (ø)
homestar-runtime/src/settings.rs	71.42% <ø> (ø)
homestar-runtime/src/network/eventloop.rs	3.40% <7.69%> (+1.12%)	⬆️
homestar-runtime/src/db/schema.rs	20.00% <33.33%> (+8.88%)	⬆️
homestar-runtime/src/receipt.rs	49.60% <40.00%> (+0.81%)	⬆️
homestar-runtime/src/scheduler.rs	70.83% <50.00%> (ø)
homestar-runtime/src/worker.rs	44.77% <50.79%> (+44.77%)	⬆️
homestar-runtime/src/db.rs	38.88% <56.00%> (+16.30%)	⬆️
homestar-runtime/src/workflow/info.rs	64.81% <64.81%> (ø)
... and 6 more

... and 6 files with indirect coverage changes