fix(nodebuilder/p2p): fix autonat == nil panic in test #10493

Job	Run time
Markdown Lint	15s
setup	3s
yamllint	18s
hadolint / hadolint	9s
go-ci / Setup	2s
upload-docs	0s
goreleaser	0s
go-ci / Lint	2m 44s
go-ci / Lint Imports	14s
go-ci / Unit Tests Coverage (ubuntu-latest)	5m 51s
go-ci / Unit Tests Coverage (macos-14)	5m 0s
go-ci / Go Mod Tidy Check	27s
go-ci / Integration Tests / Integration Tests API	3m 40s
go-ci / Integration Tests / Integration Tests Blob	2m 55s
go-ci / Integration Tests / Da Tests Sync	2m 50s
go-ci / Integration Tests / Integration Tests Fraud	2m 32s
go-ci / Integration Tests / Integration Tests ND	2m 54s
go-ci / Integration Tests / Integration Tests Reconstruction	2m 40s
go-ci / Integration Tests / Integration Tests Share	2m 48s
go-ci / Integration Tests / Integration Tests p2p	3m 4s
go-ci / Integration Tests / Integration Tests Pruning	3m 18s
go-ci / Integration Tests / Integration Tests Sync	3m 18s
	45m 2s

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