deps: update go-libp2p to v0.18.0-rc5

[vyzo]

Fixes a goroutine leak in the swarm.

[codecov]

Codecov Report

Merging #8169 (012cf96) into master (6123aa2) will decrease coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #8169      +/-   ##
==========================================
- Coverage   39.93%   39.87%   -0.06%     
==========================================
  Files         666      666              
  Lines       72554    72554              
==========================================
- Hits        28971    28934      -37     
- Misses      38555    38571      +16     
- Partials     5028     5049      +21     

Impacted Files	Coverage Δ
chain/events/message_cache.go	87.50% <0.00%> (-12.50%)	⬇️
storage/wdpost_sched.go	75.49% <0.00%> (-11.77%)	⬇️
markets/loggers/loggers.go	88.88% <0.00%> (-11.12%)	⬇️
chain/stmgr/call.go	67.87% <0.00%> (-3.64%)	⬇️
miner/miner.go	55.73% <0.00%> (-2.96%)	⬇️
blockstore/buffered.go	34.44% <0.00%> (-2.23%)	⬇️
chain/events/events_called.go	83.90% <0.00%> (-1.96%)	⬇️
blockstore/autobatch.go	56.30% <0.00%> (-1.69%)	⬇️
extern/storage-sealing/fsm.go	56.44% <0.00%> (-1.40%)	⬇️
chain/sync_manager.go	66.77% <0.00%> (-1.25%)	⬇️
... and 14 more

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