Metadata updates for release 9.0.21

[kkeshava]

Metadata changes:

• Updated alternate formatting data for country calling code(s): 91
• Updated phone metadata for region code(s):
  CL, EE, ET, GE, GY, HK, IN, KR, MG, SG, SV, US
• New geocoding data for country calling code(s): 1353 (en)
• Updated geocoding data for country calling code(s): 251 (en)
• Updated carrier data for country calling code(s):
  34 (en), 36 (en), 43 (en), 48 (en), 56 (en), 65 (en), 261 (en), 501 (en),
  503 (en), 852 (en, zh)
• Updated / refreshed time zone meta data.