fix(hostvalidator): support full urls for host

[lirantal]

Description

Support URLs provided for the host parameter by parsing them for the actual host.

• Fix breaking tests due to changes in host validator
• Attempt to parse a URL in order to capture the host for it

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

[codecov-io]

Codecov Report

Merging #88 into master will decrease coverage by 0.42%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##            master      #88      +/-   ##
===========================================
- Coverage   100.00%   99.57%   -0.43%     
===========================================
  Files            8       11       +3     
  Lines          161      235      +74     
  Branches        33       40       +7     
===========================================
+ Hits           161      234      +73     
- Misses           0        1       +1     

Impacted Files	Coverage Δ
...s/lockfile-lint-api/src/validators/ValidateHost.js	100.00% <100.00%> (ø)
packages/lockfile-lint/src/config.js	100.00% <0.00%> (ø)
packages/lockfile-lint/src/main.js	95.65% <0.00%> (ø)
packages/lockfile-lint/src/validators/index.js	100.00% <0.00%> (ø)

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