Update dependency chefspec to '~> 4.7'

[mend-5034428]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
chefspec (source)	'~> 4.4' -> '~> 4.7'

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Release Notes

chefspec/chefspec (chefspec)

v4.7.0

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IMPROVEMENTS

• Support Chef Solo actually being local mode (per Chef RFC 31)

v4.6.1

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BUG FIXES

• Use the same Chef :file_cache_path in every ChefSpec converge to prevent large numbers of LWRP deprecation warnings
• Require Fauxhai ~3.2 to prevent ChefSpec spec failures
• Require Rake < 11.0 to prevent failures

v4.6.0

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IMPROVEMENTS

• Add support for adding berkshelf_options to the RSpec config
• Add chocolately_package matchers
• Support do..end style syntax in block expectations
• Output a diff when multi-line resource parameters are unmatched

BUG FIXES

• Update tests to include better descriptions and feature names
• Add support for Policyfile workflow

v4.5.0

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IMPROVEMENTS

• Update Fauxhai dependency to 3.0 to bring in newly generated mocked Ohai data

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