fix(utils): protect against no dependsOn

[Danieliverant]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[X] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[X] No

Other information

[nx-cloud]

☁️ Nx Cloud Report

CI is running/has finished running commands for commit adba61b. As they complete they will appear below. Click to see the status, the terminal output, and the build insights.

📂 See all runs for this branch

---

✅ Successfully ran 4 targets

• nx run-many --projects=nx-affected-matrix,nx-distributed-task --skip-nx-cache=false --target=build --parallel=3 --with-deps
• nx run-many --projects=nx-affected-matrix,nx-distributed-task --skip-nx-cache=false --target=test --parallel=3 --with-deps=false
• nx run-many --projects=nx-distributed-task,nx-affected-matrix --skip-nx-cache=false --target=build --parallel=3 --scan --with-deps
• nx run-many --projects=utils,nx-distributed-task,nx-affected-matrix --skip-nx-cache=false --target=test --parallel=3 --scan --with-deps=false

---

Sent with 💌 from NxCloud.

[codecov]

Codecov Report

Merging #64 (adba61b) into main (c9dfba8) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##             main      #64   +/-   ##
=======================================
  Coverage   87.92%   87.92%           
=======================================
  Files          15       15           
  Lines         381      381           
  Branches       55       55           
=======================================
  Hits          335      335           
  Misses         43       43           
  Partials        3        3           

Flag	Coverage Δ
nx-affected-matrix	95.91% <ø> (ø)
nx-distributed-task	100.00% <ø> (ø)
utils	80.70% <0.00%> (ø)

Impacted Files	Coverage Δ
packages/utils/src/lib/inputs.ts	58.33% <0.00%> (ø)

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