Update Android Components version to 73.0.20210129143134. (#17695)

Co-authored-by: Roger Yang <royang@mozilla.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

buildSrc/src/main/java/AndroidComponents.kt

@@ -3,5 +3,5 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 object AndroidComponents {
-    const val VERSION = "73.0.20210129102924"
+    const val VERSION = "73.0.20210129143134"
 }