Updates version number to 0.4.363276189.20210318.
Updates version number to 0.4.363276189.20210318.

PiperOrigin-RevId: 363724751
(cherry picked from commit 7f1bb72a21a4067e6a177d4dd703338aea62fbd7)

bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi