chore: update handlebars in package-lock tree

[MasterOdin]

Updates handlebars in the package-lock tree (used as a sub-dependency by three packages), getting rid of 3 new NPM audit vulnerabilities related to a prototype pollution issue. All of the affected dependencies are devDependencies (jest, semantic-release through three layers of sub-dependencies, and typdoc).

Checklist

• npm test passes (tip: npm run autofix can correct most style issues)

[codecov-io]

Codecov Report

Merging #970 into release-v5-rc2 will increase coverage by 11.11%.
The diff coverage is n/a.

@@                 Coverage Diff                 @@
##           release-v5-rc2     #970       +/-   ##
===================================================
+ Coverage           77.77%   88.88%   +11.11%     
===================================================
  Files                   1        1               
  Lines                   9        9               
  Branches                2        2               
===================================================
+ Hits                    7        8        +1     
+ Misses                  2        1        -1

Impacted Files	Coverage Δ
test/resources/auth_helper.js	88.88% <0%> (+11.11%)	⬆️

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[dpopp07]

Sounds good, thanks!