Fix replace blobber

[Jayashsatolia403]

Changes

Fixes

Tests

Tasks to complete before merging PR:

• [ ] Ensure system tests are passing. If not Run them manually to check for any regressions :clipboard:
• [ ] 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 #1251 (b4b82ec) into sprint-1.11 (848591c) will decrease coverage by 0.03%. The diff coverage is 0.00%.

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@@               Coverage Diff               @@
##           sprint-1.11    #1251      +/-   ##
===============================================
- Coverage        25.54%   25.51%   -0.03%     
===============================================
  Files               84       84              
  Lines             9385     9393       +8     
===============================================
  Hits              2397     2397              
- Misses            6691     6699       +8     
  Partials           297      297              

Flag	Coverage Δ
Unit-Tests	25.51% <0.00%> (-0.03%)	:arrow_down:

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Files Changed	Coverage Δ
...de/go/0chain.net/blobbercore/allocation/workers.go	0.00% <0.00%> (ø)