Fix a shadowing setting in .golangci.yml

[massongit]

Proposed changes

https://github.com/super-linter/super-linter/actions/runs/9095084838/job/24997762122

  level=warning msg=\"[config_reader] The configuration option `linters.govet.check-shadowing` is deprecated. Please enable `shadow` instead, if you are not using `enable-all`.\"

To resolve the above warning in go modules, I change check-shadowing in .golangci.yaml to enable shadowing.

Fix #5605

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[ferrarimarco]

Thanks for this PR! A small thing to address.

[zkoppert]

✨