chore(deps): Bump github.com/celestiaorg/celestia-app from 1.4.0 to 1.6.0 #646

Job	Run time
yamllint	10s
setup	1s
Markdown Lint	9s
hadolint / hadolint	7s
go-ci / setup	1s
go-ci / Go Mod Tidy Check	46s
go-ci / Lint	2m 17s
go-ci / Run Unit Tests with Race Detector	3m 56s
go-ci / Run Integration Tests	12m 4s
go-ci / Unit Tests Coverage (ubuntu-latest)	3m 13s
go-ci / Unit Tests Coverage (macos-latest)	6m 0s
version_bump	0s
goreleaser	0s
	28m 44s

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