Refactor: utilizando RegEX no arquivo phone.py

[antoniamaia]

Código refatorado utilizando regex nos métodos:

-is_valid_landline;
-is_valid_mobile;

Arquivos modificados:

• phone.py;
• README.md; (adicionado exemplo de input)
• README_EN.md; (adicionado exemplo de input)

[codecov]

Codecov Report

Merging #154 (41ab7c5) into main (04619f6) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main      #154   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            5         5           
  Lines           87        90    +3     
=========================================
+ Hits            87        90    +3     

Files Changed	Coverage Δ
brutils/phone.py	100.00% <100.00%> (ø)

[camilamaia]

Maravilhoooooso!