replace attribute calls with input calls so inspec 4.52+ works

[levid0s]

Hi,

Just wondering if this resource pack should work with the latest Inspec version?
On my end I'm getting the following error generated for every .rb file inside inspec-gcp-1.10.19.tar.gz after upgrading the inspec client.

$ inspec --version�[0;m
4.52.9
[...]
$ inspec vendor test --overwrite
[2022-03-07 14:17:04] Dependencies for profile test successfully vendored to /builds/my_repo/test/vendor

$ inspec check test
/builds/my_repo/test/vendor/40dfc35279bb1e74d51fac6fcb8a9db2980e4719a3d7487d99fdf77309963351/inspec-gcp-1.10.19/.rubocop.yml: Warning: no department given for Documentation.
/builds/my_repo/test/vendor/40dfc35279bb1e74d51fac6fcb8a9db2980e4719a3d7487d99fdf77309963351/inspec-gcp-1.10.19/.rubocop.yml: Warning: no department given for Documentation.
[...]
[2022-03-07 14:17:15] Offenses:
[2022-03-07 14:17:15] �[36m × test/vendor/40dfc35279bb1e74d51fac6fcb8a9db2980e4719a3d7487d99fdf77309963351/inspec-gcp-1.10.19/test/integration/verify/controls/container_cluster.rb:3:18:  [Correctable] InSpec/Deprecations/AttributeHelper: InSpec attributes have been renamed to inputs. Use the input method not the deprecation attribute method to access these values.
[2022-03-07 14:17:15] �[0m�[36m × test/vendor/40dfc35279bb1e74d51fac6fcb8a9db2980e4719a3d7487d99fdf77309963351/inspec-gcp-1.10.19/test/integration/verify/controls/container_cluster.rb:3:45:  [Correctable] InSpec/Deprecations/AttributeDefault: The InSpec inputs default option has been replaced with the value option.
[2022-03-07 14:17:15] �[0m�[36m × test/vendor/40dfc35279bb1e74d51fac6fcb8a9db2980e4719a3d7487d99fdf77309963351/inspec-gcp-1.10.19/test/integration/verify/controls/container_cluster.rb:4:25:  [Correctable] InSpec/Deprecations/AttributeHelper: InSpec attributes have been renamed to inputs. Use the input method not the deprecation attribute method to access these values.

Looking at the inspec-gcp source code I do see that indeed the attribute method is being used. (I don't have any ruby knowledge)

inspec-gcp/test/integration/verify/controls/container_cluster.rb

Line 4 in 828e9a3

gcp_kube_cluster_name = attribute(:gcp_kube_cluster_name, default: '', description: 'The GKE cluster name.')

Thanks