build(deps): bump github.com/celestiaorg/nmt from 0.12.0 to 0.13.0

Bumps [github.com/celestiaorg/nmt](https://github.com/celestiaorg/nmt) from 0.12.0 to 0.13.0.
- [Release notes](https://github.com/celestiaorg/nmt/releases)
- [Commits](celestiaorg/nmt@v0.12.0...v0.13.0)

---
updated-dependencies:
- dependency-name: github.com/celestiaorg/nmt
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

go.mod

@@ -76,7 +76,7 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d // indirect
 	github.com/btcsuite/btcd/btcec/v2 v2.3.2 // indirect
-	github.com/celestiaorg/nmt v0.12.0 // indirect
+	github.com/celestiaorg/nmt v0.13.0 // indirect
 	github.com/cenkalti/backoff/v4 v4.1.1 // indirect
 	github.com/cespare/xxhash v1.1.0 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect

go.sum

@@ -177,8 +177,8 @@ github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n
 github.com/celestiaorg/celestia-core v1.12.1-tm-v0.34.23 h1:Y450PTkAP0ezz2qxC1Tdo1JBiXu+uwGP0HxDpVFq7SI=
 github.com/celestiaorg/celestia-core v1.12.1-tm-v0.34.23/go.mod h1:S0QMQWprpLDnBooMFbQYEVUGzZJaLMwOvtG7tbWoAiY=
 github.com/celestiaorg/merkletree v0.0.0-20210714075610-a84dc3ddbbe4 h1:CJdIpo8n5MFP2MwK0gSRcOVlDlFdQJO1p+FqdxYzmvc=
-github.com/celestiaorg/nmt v0.12.0 h1:6CmaMPri9FdSiytZP7yCrEq3ewebFiIEjlJhasrS6oQ=
-github.com/celestiaorg/nmt v0.12.0/go.mod h1:NN3W8EEoospv8EHCw50DDNWwPLpJkFHoEFiqCEcNCH4=
+github.com/celestiaorg/nmt v0.13.0 h1:zhuwhvICMJhXy2lzaBydFBYztTuLzV5N3xAa9zTSiCw=
+github.com/celestiaorg/nmt v0.13.0/go.mod h1:b+pwd9cGTSSYLZnUIQSJl07pusJdFeEvCVsVfSRH9gA=
 github.com/celestiaorg/smt v0.3.0 h1:Hc6m8fIVRajrg/Saf8ivX4xw551LHzOs8kqeadd6h9s=
 github.com/celestiaorg/smt v0.3.0/go.mod h1:/sdYDakowo/XaxS2Fl7CBqtuf/O2uTqF2zmAUFAtAiw=
 github.com/cenkalti/backoff v2.2.1+incompatible h1:tNowT99t7UNflLxfYYSlKYsBpXdEet03Pg2g16Swow4=