chore(deps): Update http_client_conformance_tests

[provokateurin]

Pulls in dart-lang/http#1284

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.46%. Comparing base (12788cc) to head (acdd8f6).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2364   +/-   ##
=======================================
  Coverage   25.46%   25.46%           
=======================================
  Files         333      333           
  Lines      134828   134828           
=======================================
  Hits        34336    34336           
  Misses     100492   100492           

Flag	Coverage Δ		*Carryforward flag
cookie_store	100.00% <ø> (ø)		Carriedforward from 12788cc
dynamite	31.08% <ø> (ø)		Carriedforward from 12788cc
dynamite_end_to_end_test	60.96% <ø> (ø)		Carriedforward from 12788cc
dynamite_runtime	85.40% <ø> (ø)		Carriedforward from 12788cc
neon_dashboard	96.05% <ø> (ø)
neon_framework	45.81% <ø> (ø)
neon_http_client	93.28% <ø> (ø)
neon_notifications	100.00% <ø> (ø)
neon_talk	99.45% <ø> (ø)
nextcloud	22.29% <ø> (ø)
sort_box	90.90% <ø> (ø)		Carriedforward from 12788cc

*This pull request uses carry forward flags. Click here to find out more.