feat: use MkdirAll by OS(#19301)

[thisishwan2]

Hello. This is a PR for issue #19301

I created an implementation to run MkdirAll by os. And I abstracted it. In hydratorhelper, I modified it to use an implementation that fits os.
Please let me know if there is anything wrong!

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[crenshaw-dev]

I think the interface we need is func MkdirAll(root, unsafePath string, mode int) error. The Linux implementation will just pass through the args to securejoin.MkdirAll. The non-Linux implementation will run securejoin.SecureJoin(root, unsafePath) and then run os.MkdirAll.

[thisishwan2]

Is it correct to change the part mentioned in the issue as follows??

before

fullHydratePath, err = securejoin.SecureJoin(h.dirPath, hydratePath) 
 if err != nil { 
 	return fmt.Errorf("failed to construct hydrate path: %w", err) 
 } 
 // TODO: consider switching to securejoin.MkdirAll: https://github.com/cyphar/filepath-securejoin?tab=readme-ov-file#mkdirall 
 err = os.MkdirAll(fullHydratePath, os.ModePerm) 

after

err = MkdirAll(rootPath, hydratePath, os.ModePerm)

[thisishwan2]

@crenshaw-dev As you said, I modified the implementation.
securejoin.MkdirAll(in linux) and securejoin.securejoin (root, issuePath) and os.MkdirAll(in default) are implemented in their respective implementations
To use the fullHydratePath variable in future codes,
fullHydratePath, err = mkdirAllProvider.MkdirAll (rootPath, hydratePath, os.ModePerm) Modified hydratorhelper.go code in form.

[crenshaw-dev]

This looks nearly perfect! A few requests:

1. Can we eliminate the structs and just have a plain function called SecureMkdirAll? I tried locally, looks like the struct isn't necessary.
2. Can you add super basic unit tests for both implementations?

[thisishwan2]

Great!
I think it's unnecessary to erase the interface mkdir_provider.go while erasing the structure, so I'll erase it together.

[crenshaw-dev]

Thank you!!