chore(deps): drop go-libp2p-pubsub fork replace, bump to v0.16.0

The celestiaorg fork carried `WithLocalPublication` (already upstreamed
in v0.15.0) plus a celestia-specific tweak to skip signing during local
publication. go-header itself does not use any fork-specific API.

The only fork-relevant symbol consumers may pass through `WithTopicOpts`
is `FanoutOnly`, which was upstreamed in libp2p/go-libp2p-pubsub#676 and
shipped in v0.16.0.

Closes: https://linear.app/celestia/issue/PROTOCO-1784/go-header-drop-go-libp2p-pubsub-celestiaorg-fork-replace

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: walldiss

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/ipfs/go-datastore v0.9.0
 	github.com/ipfs/go-log/v2 v2.9.0
 	github.com/libp2p/go-libp2p v0.48.0
-	github.com/libp2p/go-libp2p-pubsub v0.15.0
+	github.com/libp2p/go-libp2p-pubsub v0.16.0
 	github.com/stretchr/testify v1.11.1
 	go.opentelemetry.io/otel v1.41.0
 	go.opentelemetry.io/otel/metric v1.41.0
@@ -107,5 +107,3 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	lukechampine.com/blake3 v1.4.1 // indirect
 )
-
-replace github.com/libp2p/go-libp2p-pubsub => github.com/celestiaorg/go-libp2p-pubsub v0.6.2-0.20260225133553-213565e2a428

go.sum

@@ -10,8 +10,6 @@ github.com/canonical/go-sp800.90a-drbg v0.0.0-20210314144037-6eeb1040d6c3 h1:oe6
 github.com/canonical/go-sp800.90a-drbg v0.0.0-20210314144037-6eeb1040d6c3/go.mod h1:qdP0gaj0QtgX2RUZhnlVrceJ+Qln8aSlDyJwelLLFeM=
 github.com/celestiaorg/go-libp2p-messenger v0.2.2 h1:osoUfqjss7vWTIZrrDSy953RjQz+ps/vBFE7bychLEc=
 github.com/celestiaorg/go-libp2p-messenger v0.2.2/go.mod h1:oTCRV5TfdO7V/k6nkx7QjQzGrWuJbupv+0o1cgnY2i4=
-github.com/celestiaorg/go-libp2p-pubsub v0.6.2-0.20260225133553-213565e2a428 h1:xoPAwLmTwmwUCDZ8shNCTyMMXEjU/5O0bSyuTBBRkeA=
-github.com/celestiaorg/go-libp2p-pubsub v0.6.2-0.20260225133553-213565e2a428/go.mod h1:lr4oE8bFgQaifRcoc2uWhWWiK6tPdOEKpUuR408GFN4=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -76,6 +74,8 @@ github.com/libp2p/go-libp2p v0.48.0 h1:h2BrLAgrj7X8bEN05K7qmrjpNHYA+6tnsGRdprjTn
 github.com/libp2p/go-libp2p v0.48.0/go.mod h1:Q1fBZNdmC2Hf82husCTfkKJVfHm2we5zk+NWmOGEmWk=
 github.com/libp2p/go-libp2p-asn-util v0.4.1 h1:xqL7++IKD9TBFMgnLPZR6/6iYhawHKHl950SO9L6n94=
 github.com/libp2p/go-libp2p-asn-util v0.4.1/go.mod h1:d/NI6XZ9qxw67b4e+NgpQexCIiFYJjErASrYW4PFDN8=
+github.com/libp2p/go-libp2p-pubsub v0.16.0 h1:j7G2C8kJwkcAQqYR7Wmq3d75d3Sgw/N0Hhiv0dVx7OY=
+github.com/libp2p/go-libp2p-pubsub v0.16.0/go.mod h1:lr4oE8bFgQaifRcoc2uWhWWiK6tPdOEKpUuR408GFN4=
 github.com/libp2p/go-libp2p-testing v0.12.0 h1:EPvBb4kKMWO29qP4mZGyhVzUyR25dvfUIK5WDu6iPUA=
 github.com/libp2p/go-libp2p-testing v0.12.0/go.mod h1:KcGDRXyN7sQCllucn1cOOS+Dmm7ujhfEyXQL5lvkcPg=
 github.com/libp2p/go-msgio v0.3.0 h1:mf3Z8B1xcFN314sWX+2vOTShIE0Mmn2TXn3YCUQGNj0=