add self update option

[RamanaReddy0M]

Description:

• add update flags

UPDATE:
   -up, -update                 update uncover to latest version
   -duc, -disable-update-check  disable automatic uncover update check

• Reference: https://github.com/projectdiscovery/tlsx/blob/8038ac06765d490210aa8bf753f44758a653b39f/cmd/tlsx/main.go#L125

[ehsandeep]

./uncover -update

  __  ______  _________ _   _____  _____
 / / / / __ \/ ___/ __ \ | / / _ \/ ___/
/ /_/ / / / / /__/ /_/ / |/ /  __/ /    
\__,_/_/ /_/\___/\____/|___/\___/_/ v1.0.1

		projectdiscovery.io

3.52 MiB / 3.52 MiB [-------------------------------------------------------] 100.00% 308.45 KiB p/s

[INF] uncover sucessfully updated 1.0.1 -> 1.0.2 (latest)

  ## What's Changed                                                           
                                                                              
  • Added CriminalIP https://www.criminalip.io/ Search Engine support by      
  @gy741 in https://github.com/projectdiscovery/uncover/pull/126              
  • Fixed issue with CIDR/IP query input by @tarunKoyalwar in                 
  https://github.com/projectdiscovery/uncover/pull/129                        
  • Fixed EOF issue with larger output limit by @tarunKoyalwar in             
  https://github.com/projectdiscovery/uncover/pull/129                        
  • Removed  shodan-idb  engine from default selection by @tarunKoyalwar in   
  https://github.com/projectdiscovery/uncover/pull/129                        
                                                                              
  ## New Contributors                                                         
                                                                              
  • @gy741 made their first contribution in                                   
  https://github.com/projectdiscovery/uncover/pull/126                        
  • @tarunKoyalwar made their first contribution in                           
  https://github.com/projectdiscovery/uncover/pull/129                        
                                                                              
  Full Changelog:                                                             
  https://github.com/projectdiscovery/uncover/compare/v1.0.1...v1.0.2