chore(deps): bump github.com/multiformats/go-multicodec in /cmd

Bumps [github.com/multiformats/go-multicodec](https://github.com/multiformats/go-multicodec) from 0.8.1 to 0.9.0.
- [Release notes](https://github.com/multiformats/go-multicodec/releases)
- [Commits](multiformats/go-multicodec@v0.8.1...v0.9.0)

---
updated-dependencies:
- dependency-name: github.com/multiformats/go-multicodec
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

cmd/go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/ipld/go-car/v2 v2.10.0
 	github.com/ipld/go-codec-dagpb v1.6.0
 	github.com/ipld/go-ipld-prime v0.20.0
-	github.com/multiformats/go-multicodec v0.8.1
+	github.com/multiformats/go-multicodec v0.9.0
 	github.com/multiformats/go-multihash v0.2.1
 	github.com/multiformats/go-varint v0.0.7
 	github.com/polydawn/refmt v0.89.0

cmd/go.sum

@@ -185,8 +185,8 @@ github.com/multiformats/go-multibase v0.0.1/go.mod h1:bja2MqRZ3ggyXtZSEDKpl0uO/g
 github.com/multiformats/go-multibase v0.0.3/go.mod h1:5+1R4eQrT3PkYZ24C3W2Ue2tPwIdYQD509ZjSb5y9Oc=
 github.com/multiformats/go-multibase v0.1.1 h1:3ASCDsuLX8+j4kx58qnJ4YFq/JWTJpCyDW27ztsVTOI=
 github.com/multiformats/go-multibase v0.1.1/go.mod h1:ZEjHE+IsUrgp5mhlEAYjMtZwK1k4haNkcaPg9aoe1a8=
-github.com/multiformats/go-multicodec v0.8.1 h1:ycepHwavHafh3grIbR1jIXnKCsFm0fqsfEOsJ8NtKE8=
-github.com/multiformats/go-multicodec v0.8.1/go.mod h1:L3QTQvMIaVBkXOXXtVmYE+LI16i14xuaojr/H7Ai54k=
+github.com/multiformats/go-multicodec v0.9.0 h1:pb/dlPnzee/Sxv/j4PmkDRxCOi3hXTz3IbPKOXWJkmg=
+github.com/multiformats/go-multicodec v0.9.0/go.mod h1:L3QTQvMIaVBkXOXXtVmYE+LI16i14xuaojr/H7Ai54k=
 github.com/multiformats/go-multihash v0.0.1/go.mod h1:w/5tugSrLEbWqlcgJabL3oHFKTwfvkofsjW2Qa1ct4U=
 github.com/multiformats/go-multihash v0.0.10/go.mod h1:YSLudS+Pi8NHE7o6tb3D8vrpKa63epEDmG8nTduyAew=
 github.com/multiformats/go-multihash v0.0.13/go.mod h1:VdAWLKTwram9oKAatUcLxBNUjdtcVwxObEQBtRfuyjc=