Merge Cleanup across blocks into testnet branch

[atodorov]

Description of proposed changes

---

Practical tips for PR review & merge:

• All GitHub Actions report PASS
• Newly added code/functions have unit tests
  • Coverage tools report all newly added lines as covered
  • The positive scenario is exercised
  • Negative scenarios are exercised, e.g. assert on all possible errors
  • Assert on events triggered if applicable
  • Assert on changes made to storage if applicable
• Modified behavior/functions - try to make sure above test items are covered
• Integration tests are added if applicable/needed

[codecov-commenter]

Codecov Report

Merging #1387 (aaa116c) into testnet (5d1572b) will decrease coverage by 0.01%.
The diff coverage is 96.07%.

@@             Coverage Diff             @@
##           testnet    #1387      +/-   ##
===========================================
- Coverage    71.17%   71.16%   -0.01%     
===========================================
  Files          107      110       +3     
  Lines        12498    12873     +375     
  Branches       120      120              
===========================================
+ Hits          8895     9161     +266     
- Misses        3593     3712     +119     
+ Partials        10        0      -10     

Files	Coverage Δ
pallets/creditcoin/src/mock.rs	100.00% <ø> (ø)
pallets/creditcoin/src/test_utils.rs	100.00% <100.00%> (ø)
pallets/creditcoin/src/tests.rs	98.24% <ø> (ø)
runtime/src/version.rs	0.00% <ø> (ø)
pallets/creditcoin/src/lib.rs	84.97% <97.91%> (+1.78%)	⬆️
pallets/creditcoin/src/types.rs	83.07% <0.00%> (ø)
pallets/creditcoin/src/types/cleanup.rs	92.85% <92.85%> (ø)
pallets/creditcoin/src/tests/cleanup.rs	97.80% <97.80%> (ø)
runtime/src/lib.rs	17.11% <16.66%> (-0.24%)	⬇️

... and 10 files with indirect coverage changes

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[github-actions]

For full LLVM coverage report click here!

[atodorov]

Merging with some CI failures:

• cargo audit - known failures
• test-against-disconnected-live-node - Alice & Bob accounts on Testnet don't have any balance so it's impossible to execute the tests
• test-against-fork - seeing a few timeouts from the tests, the rest are looking good.