* Add support to kotlin.time APIs in the rate limit interceptor. * Add a missing line break in the doc. * Move the specific host to the same file. * Add kotlin.time rule to Proguard and remove specific host rule. * Mark the old version as deprecated and address review. * Remove unused import. * Remove yet another unused import. (cherry picked from commit 9b6567f5e4bfa4b8a4845400216551fd28545094)