chore: add govulncheck

[gacevicljubisa]

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• [x] I have read the coding guide.
• [ ] My change requires a documentation update, and I have done it.
• [ ] I have added tests to cover my changes.
• [ ] I have filled out the description and linked the related issues.

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Open API Spec Version Changes (if applicable)

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[gacevicljubisa]

Comment regarding introduction of govulncheck into the codebase (workflow) is made on the issue https://github.com/ethersphere/bee/issues/3618#issuecomment-2703736174

[nikipapadatou]

Request is being handled by dependabot. Closing this PR as redundant.