fix: use master branch of webb-rs

[1xstj]

Required for tangle-network/tangle#205

[codecov-commenter]

Codecov Report

Patch coverage: 4.66% and project coverage change: -0.07 ⚠️

Comparison is base (90bfe77) 16.10% compared to head (a8e5c0c) 16.03%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #678      +/-   ##
==========================================
- Coverage   16.10%   16.03%   -0.07%     
==========================================
  Files          73       73              
  Lines        5412     5436      +24     
==========================================
  Hits          871      871              
- Misses       4541     4565      +24     

Impacted Files	Coverage Δ
dkg-gadget/src/gossip_engine/network.rs	0.00% <0.00%> (ø)
dkg-gadget/src/lib.rs	0.00% <0.00%> (ø)
dkg-gadget/src/worker.rs	0.00% <0.00%> (ø)
dkg-primitives/src/utils.rs	35.60% <0.00%> (+1.73%)	⬆️
dkg-test-orchestrator/src/client.rs	0.00% <ø> (ø)
dkg-test-orchestrator/src/dummy_api.rs	0.00% <ø> (ø)
pallets/bridge-registry/src/lib.rs	0.00% <ø> (ø)
pallets/dkg-proposal-handler/src/lib.rs	55.45% <ø> (ø)
pallets/dkg-metadata/src/lib.rs	34.14% <25.00%> (ø)
pallets/dkg-proposals/src/lib.rs	70.82% <100.00%> (ø)

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