[composer] Set dependencies for 5.0.0-beta1 release.

[composer] Set dependencies for 4.6.21 release.

[composer] Set dependencies for 4.6.20 release.

[composer] Set dependencies for 4.6.19 release.

[composer] Set dependencies for 4.6.18 release.

[composer] Set dependencies for 4.6.17 release.

[composer] Set dependencies for 4.6.16 release.

[composer] Set dependencies for 4.6.15 release.

[composer] Set dependencies for 4.6.14 release.

[composer] Set dependencies for 4.6.13 release.