refactor(job): rename blobsURL to blobURL for grammatical accuracy

[gaius-qi]

Description

This pull request makes a minor update to the internal/job/image.go file, focusing on improving naming consistency. The method previously named blobsURL has been renamed to blobURL, and all usages have been updated accordingly. This change helps clarify that the method returns the URL for a single blob, not multiple blobs.

• Naming consistency:
  • Renamed the blobsURL method to blobURL in the preheatImage struct and updated all references to use the new name. [1] [2]

Related Issue

Motivation and Context

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 28.12%. Comparing base (9f7c81c) to head (8be7e9f).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/job/image.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4708   +/-   ##
=======================================
  Coverage   28.12%   28.12%           
=======================================
  Files         232      232           
  Lines       23097    23097           
=======================================
  Hits         6495     6495           
  Misses      16161    16161           
  Partials      441      441           

Flag	Coverage Δ
unittests	28.12% <0.00%> (ø)

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Files with missing lines	Coverage Δ
internal/job/image.go	0.00% <0.00%> (ø)

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[chlins]

lgtm