Update lodash to latest version

[kmcginnes]

Description

Update lodash to the latest version (4.18.1).

• Update packages/graph-explorer/package.json from ^4.17.23 to ^4.18.1

Validation

• pnpm run checks passes (lint, format, types)
• pnpm test passes (134 test files, 1337 tests)

Check List

• I confirm that my contribution is made under the terms of the Apache 2.0 license.
• I have verified pnpm checks passes with no errors.
• I have verified pnpm test passes with no failures.
• I have covered new added functionality with unit tests if necessary.
• I have updated documentation if necessary.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.20%. Comparing base (c5affc5) to head (bffebb8).
⚠️ Report is 114 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1631       +/-   ##
===========================================
+ Coverage   47.81%   62.20%   +14.39%     
===========================================
  Files         382      389        +7     
  Lines        8525     8952      +427     
  Branches     3159     3430      +271     
===========================================
+ Hits         4076     5569     +1493     
+ Misses       3070     2338      -732     
+ Partials     1379     1045      -334     

Flag	Coverage Δ
unittests	62.20% <ø> (+14.39%)	⬆️

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