Check for lock expiry

[lpoli]

Fixes

Expire lock if some lock acquiring process does not release lock.

Tests

Tasks to complete before merging PR:

• Ensure system tests are passing. If not Run them manually to check for any regressions 📋
• Do any new system tests need added to test this change? do any existing system tests need updated? If so create a PR at 0chain/system_test
• Merge your system tests PR to master AFTER merging this PR

Associated PRs (Link as appropriate):

• 0chain:
• gosdk:
• system_test:
• zboxcli:
• zwalletcli:
• Other: ...

[codecov-commenter]

Codecov Report

Merging #992 (6b95dc7) into staging (f3daf59) will decrease coverage by 0.07%.
The diff coverage is 7.69%.

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@@             Coverage Diff             @@
##           staging     #992      +/-   ##
===========================================
- Coverage    26.13%   26.06%   -0.07%     
===========================================
  Files           76       76              
  Lines         7760     7769       +9     
===========================================
- Hits          2028     2025       -3     
- Misses        5460     5471      +11     
- Partials       272      273       +1     

Flag	Coverage Δ
Unit-Tests	26.06% <7.69%> (-0.07%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ode/go/0chain.net/blobbercore/writemarker/mutex.go	47.43% <7.69%> (-10.54%)	⬇️

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[peterlimg]

LGTM