chore(deps): bump github.com/Eyevinn/mp4ff from 0.46.0 to 0.47.0 (#28)

Bumps [github.com/Eyevinn/mp4ff](https://github.com/Eyevinn/mp4ff) from 0.46.0 to 0.47.0.
- [Release notes](https://github.com/Eyevinn/mp4ff/releases)
- [Changelog](https://github.com/Eyevinn/mp4ff/blob/master/CHANGELOG.md)
- [Commits](Eyevinn/mp4ff@v0.46.0...v0.47.0)

---
updated-dependencies:
- dependency-name: github.com/Eyevinn/mp4ff
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -3,7 +3,7 @@ module github.com/iyear/gowidevine
 go 1.18
 
 require (
-	github.com/Eyevinn/mp4ff v0.46.0
+	github.com/Eyevinn/mp4ff v0.47.0
 	github.com/chmike/cmac-go v1.1.0
 	github.com/stretchr/testify v1.9.0
 	google.golang.org/protobuf v1.35.1

go.sum

@@ -1,5 +1,5 @@
-github.com/Eyevinn/mp4ff v0.46.0 h1:A8oJA4A3C9fDbX38jEw/26utjNdvmRmrO37tVI5pDk0=
-github.com/Eyevinn/mp4ff v0.46.0/go.mod h1:hJNUUqOBryLAzUW9wpCJyw2HaI+TCd2rUPhafoS5lgg=
+github.com/Eyevinn/mp4ff v0.47.0 h1:XSSHYt5+I0fyOnHWoNwM72DtivlmHFR0V9azgIi+ZVU=
+github.com/Eyevinn/mp4ff v0.47.0/go.mod h1:hJNUUqOBryLAzUW9wpCJyw2HaI+TCd2rUPhafoS5lgg=
 github.com/chmike/cmac-go v1.1.0 h1:aF73ZAEx9N2WdQc93DOJ2fMsBDAGqUtuenjMJMb3kEI=
 github.com/chmike/cmac-go v1.1.0/go.mod h1:wcIN7NRqWSKGuORzd4dReBkoBDE9ZBqfyTVxyDxGeUw=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=