fix: Use forked pion/ice to fix Close() data race

[kylecarbs]

I introduced a data-race in my fork while fixing the close race.
This is fixed now, and contributed upstream!

[kylecarbs]

Seeing "fixed" with a failed CI always gives me sad chills.

[codecov]

Codecov Report

Merging #342 (2ea35ca) into main (c85933f) will increase coverage by 3.89%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #342      +/-   ##
==========================================
+ Coverage   63.61%   67.50%   +3.89%     
==========================================
  Files          69      142      +73     
  Lines         786     7706    +6920     
  Branches       77       77              
==========================================
+ Hits          500     5202    +4702     
- Misses        271     1975    +1704     
- Partials       15      529     +514     

Flag	Coverage Δ
unittest-go-macos-latest	66.17% <ø> (?)
unittest-go-ubuntu-latest	67.59% <ø> (?)
unittest-go-windows-2022	65.87% <ø> (?)
unittest-js	63.61% <ø> (ø)

Impacted Files	Coverage Δ
provisionersdk/transport.go	55.31% <0.00%> (ø)
peer/conn.go	77.23% <0.00%> (ø)
httpmw/apikey.go	84.34% <0.00%> (ø)
codersdk/projects.go	70.65% <0.00%> (ø)
pty/start_windows.go	51.30% <0.00%> (ø)
pty/pty_other.go	35.89% <0.00%> (ø)
coderd/workspaces.go	65.11% <0.00%> (ø)
cli/workspacecreate.go	47.36% <0.00%> (ø)
cli/projects.go	76.27% <0.00%> (ø)
provisionersdk/serve.go	35.13% <0.00%> (ø)
... and 63 more

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