build(deps): bump github.com/abema/go-mp4 from 1.1.1 to 1.2.0 (#2913)

Bumps [github.com/abema/go-mp4](https://github.com/abema/go-mp4) from 1.1.1 to 1.2.0.
- [Release notes](https://github.com/abema/go-mp4/releases)
- [Commits](https://github.com/abema/go-mp4/compare/v1.1.1...v1.2.0)

---
updated-dependencies:
- dependency-name: github.com/abema/go-mp4
  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>

go.mod

@@ -4,7 +4,7 @@ go 1.21
 
 require (
 	code.cloudfoundry.org/bytefmt v0.0.0
-	github.com/abema/go-mp4 v1.1.1
+	github.com/abema/go-mp4 v1.2.0
 	github.com/alecthomas/kong v0.8.1
 	github.com/aler9/writerseeker v1.1.0
 	github.com/bluenviron/gohlslib v1.2.0

go.sum

@@ -1,5 +1,5 @@
-github.com/abema/go-mp4 v1.1.1 h1:OfzkdMO6SWTBR1ltNSVwlTHatrAK9I3iYLQfkdEMMuc=
-github.com/abema/go-mp4 v1.1.1/go.mod h1:vPl9t5ZK7K0x68jh12/+ECWBCXoWuIDtNgPtU2f04ws=
+github.com/abema/go-mp4 v1.2.0 h1:gi4X8xg/m179N/J15Fn5ugywN9vtI6PLk6iLldHGLAk=
+github.com/abema/go-mp4 v1.2.0/go.mod h1:vPl9t5ZK7K0x68jh12/+ECWBCXoWuIDtNgPtU2f04ws=
 github.com/alecthomas/assert/v2 v2.1.0 h1:tbredtNcQnoSd3QBhQWI7QZ3XHOVkw1Moklp2ojoH/0=
 github.com/alecthomas/assert/v2 v2.1.0/go.mod h1:b/+1DI2Q6NckYi+3mXyH3wFb8qG37K/DuK80n7WefXA=
 github.com/alecthomas/kong v0.8.1 h1:acZdn3m4lLRobeh3Zi2S2EpnXTd1mOL6U7xVml+vfkY=