Phonenumbers

Code changes:
- Added the std:: qualifier to string throughout phonenumberutil.
- Changed several std::string parameters to absl::string_view.
Metadata changes:
- Updated phone metadata for region code(s): CO, HK, PA, PE, SG, SN, UZ
- Updated short number metadata for region code(s): UY
- Updated geocoding data for country calling code(s): 51 (en)
- Updated carrier data for country calling code(s):
44 (en), 57 (en), 65 (en), 221 (en), 852 (en, zh), 972 (en), 998 (en)

Metadata changes:
- Updated phone metadata for region code(s): AR, CZ, ET, ID, IL, MX, NZ
- Updated geocoding data for country calling code(s):
52 (en), 54 (en), 251 (en), 1807 (en)
- Updated carrier data for country calling code(s):
47 (en), 420 (en), 972 (en)
- Updated / refreshed time zone meta data.

Metadata changes:
- Updated phone metadata for region code(s):
BF, CD, GM, NG, RO, SG, SN, TJ, UY
- Updated short number metadata for region code(s): CA
- Updated geocoding data for country calling code(s): 234 (en), 243 (fr)
- Updated carrier data for country calling code(s):
32 (en), 40 (en), 65 (en), 220 (en), 226 (en), 673 (en), 992 (en)

Metadata changes:
- Updated phone metadata for region code(s):
AO, BD, BJ, CM, CN, DE, DZ, EG, FR, HK, IL, ZA
- Updated carrier data for country calling code(s):
27 (en), 33 (en), 34 (en), 41 (en), 237 (en), 244 (en), 852 (en, zh)

Metadata changes:
- Updated phone metadata for region code(s):
BO, GY, KR, LA, MY, SC, SG, TJ, VI
- Updated short number metadata for region code(s): AT, DE
- Updated geocoding data for country calling code(s): 86 (en, zh)
- Updated carrier data for country calling code(s):
61 (en), 65 (en), 237 (en), 591 (en), 592 (en), 992 (en)

Metadata changes:
- Updated phone metadata for region code(s): CN, IL
- Updated short number metadata for region code(s): CN
- Updated carrier data for country calling code(s): 972 (en)
- Updated / refreshed time zone meta data.