fix: fix slice init length

[davidwoood]

Description

The intention here should be to initialize a slice with a capacity of value.Count() rather than initializing the length of this slice.

The online demo: https://go.dev/play/p/q1BcVCmvidW

---

For contributor use:

• [x] Targeted PR against master branch
• [x] Linked to GitHub issue with discussion and accepted design OR link to spec that describes this work
• [ ] Code follows the standards mentioned here
• [ ] Updated relevant documentation
• [ ] Re-reviewed Files changed in the GitHub PR explorer
• [ ] Added appropriate labels

[bluesign]

thank you for fixing this @davidwoood

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 34.50%. Comparing base (96c4f80) to head (058ba6e). Report is 35 commits behind head on master.

Files with missing lines	Patch %	Lines
server/debugger/debugsession.go	0.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #766      +/-   ##
==========================================
- Coverage   35.30%   34.50%   -0.80%     
==========================================
  Files          47       45       -2     
  Lines        7418     7320      -98     
==========================================
- Hits         2619     2526      -93     
  Misses       4610     4610              
+ Partials      189      184       -5     

Flag	Coverage Δ
unittests	34.50% <0.00%> (-0.80%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[bluesign]

@janezpodhostnik can you merge this one, I don't have permission