fix unmarshaling panic vp8

[vfilipchenkov]

panic when unmarshal 0x81, 0x81, 0x94 panic: runtime error: index out of range [3] with length 3

[Sean-Der]

Thank you so much @vfilipchenkov! When the tests pass I will merge + tag and update pion/webrtc :)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.26%. Comparing base (a18e24d) to head (e058c3a).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #254      +/-   ##
==========================================
+ Coverage   86.25%   86.26%   +0.01%     
==========================================
  Files          22       22              
  Lines        2160     2163       +3     
==========================================
+ Hits         1863     1866       +3     
  Misses        261      261              
  Partials       36       36              

Flag	Coverage Δ
go	86.26% <100.00%> (+0.01%)	⬆️
wasm	85.76% <100.00%> (+0.01%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[Sean-Der]

Can you update your commit message for linter?

Fix out of range access in VP8 Unmarshal

When unmarshaling 0x81, 0x81, 0x94

    panic: runtime error: index out of range [3] with length 3

[Sean-Der]

Updated! After this passes will merge :)