feat: add maas plugin

[TylerGillson]

Issue

Resolves #113

Description

Add support for the MAAS plugin to validatorctl.

[gitguardian]

⚠️ GitGuardian has uncovered 6 secrets following the scan of your pull request.

Please consider investigating the findings and remediating the incidents. Failure to do so may lead to compromising the associated services or software components.

🔎 Detected hardcoded secrets in your pull request

GitGuardian id	GitGuardian status	Secret	Commit	Filename
13388491	Triggered	Generic High Entropy Secret	042f0c6	hack/validator.tmpl	View secret
13388491	Triggered	Generic High Entropy Secret	2abe222	hack/validator.tmpl	View secret
13388493	Triggered	Generic High Entropy Secret	2abe222	hack/validator.tmpl	View secret
13388493	Triggered	Generic High Entropy Secret	2927af9	tests/integration/_validator/testcases/data/validator.yaml	View secret
13388493	Triggered	Generic High Entropy Secret	14bd56c	tests/integration/_validator/testcases/data/validator.yaml	View secret
13388493	Triggered	Generic High Entropy Secret	14bd56c	tests/integration/_validator/testcases/data/validator.yaml	View secret

🛠 Guidelines to remediate hardcoded secrets

1. Understand the implications of revoking this secret by investigating where it is used in your code.
2. Replace and store your secrets safely. Learn here the best practices.
3. Revoke and rotate these secrets.
4. If possible, rewrite git history. Rewriting git history is not a trivial act. You might completely break other contributing developers' workflow and you risk accidentally deleting legitimate data.

To avoid such incidents in the future consider

• following these best practices for managing and storing secrets including API keys and other credentials
• install secret detection on pre-commit to catch secret before it leaves your machine and ease remediation.

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^{🦉 GitGuardian detects secrets in your source code to help developers and security teams secure the modern development process. You are seeing this because you or someone else with access to this repository has authorized GitGuardian to scan your pull request.}

[codecov]

Codecov Report

Attention: Patch coverage is 20.17391% with 459 lines in your changes missing coverage. Please review.

Files	Patch %	Lines
pkg/services/validator/maas.go	3.24%	351 Missing and 7 partials ⚠️
pkg/services/clouds/maas_service.go	18.96%	40 Missing and 7 partials ⚠️
pkg/cmd/validator/validator.go	29.72%	25 Missing and 1 partial ⚠️
pkg/components/validator.go	50.00%	11 Missing and 4 partials ⚠️
pkg/services/validator/validator_service.go	54.54%	7 Missing and 3 partials ⚠️
...integration/_validator/testcases/test_validator.go	94.82%	3 Missing ⚠️

@@           Coverage Diff           @@
##             main     #160   +/-   ##
=======================================
  Coverage        ?   31.35%           
=======================================
  Files           ?       43           
  Lines           ?     5990           
  Branches        ?        0           
=======================================
  Hits            ?     1878           
  Misses          ?     3775           
  Partials        ?      337           

Files	Coverage Δ
pkg/config/constants.go	100.00% <ø> (ø)
pkg/services/validator/aws.go	14.39% <ø> (ø)
...integration/_validator/testcases/test_validator.go	81.67% <94.82%> (ø)
pkg/services/validator/validator_service.go	40.04% <54.54%> (ø)
pkg/components/validator.go	50.72% <50.00%> (ø)
pkg/cmd/validator/validator.go	27.88% <29.72%> (ø)
pkg/services/clouds/maas_service.go	18.96% <18.96%> (ø)
pkg/services/validator/maas.go	3.24% <3.24%> (ø)

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