Set version to 74.0.6.

Set version to 74.0.5.

Set version to 74.0.4.

Set version to 74.0.3.

Set version to 74.0.2.

Set version to 74.0.1.

Issue mozilla-mobile#9899: (Merge day) browser-engine-gecko-nightly -…

…> 89

Set version to 73.0.12.

Set version to 73.0.11.

Set version to 73.0.10. (mozilla-mobile#9898)