Version pinning for inspec dependency updated to include range of ver…

…sions

Signed-off-by: Nik08 <[email protected]>

kitchen-inspec.gemspec

@@ -17,8 +17,8 @@ Gem::Specification.new do |spec|
   spec.files         = `git ls-files -z`.split("\x0").grep(/LICENSE|^lib/)
   spec.require_paths = ["lib"]
   spec.required_ruby_version = ">= 2.3.0"
-  # Version upgrade to InSpec 6
-  spec.add_dependency "inspec", "~> 6.0"
+  # InSpec 6 included
+  spec.add_dependency "inspec", ">= 2.2.64", "< 7.0" # 2.2.64 is required for plugin v2 support
   spec.add_dependency "test-kitchen", ">= 2.7", "< 4" # 2.7 introduced no_parallel_for for verifiers
   spec.add_dependency "hashie", ">= 3.4", "<= 5.0"
 end