fix: prefix should use stringLike when new a bucketPolicy (2)

[mannreis]

Addressing minio/minio#21244

Is there a reason why #2105 was closed? Does it not fix the issue or is there more to it?

This a new attempt to fix it!

[jiuker]

Stringlike used prefix to check, * will not have any difference. And mostly it's test case and some other places load this one as StringEqual, if I remember correctly.

[jiuker]

Welcome to fix them

[mannreis]

After further checking I think we need the wildcard appended to the prefix other wise it will behave as an exact match and there fore give permission denied. I found a similar example in the docs: https://min.io/docs/minio/linux/administration/identity-access-management/policy-based-access-control.html#minio-policy-variables-internal

Other wise removing the last two commits would address you suggestion.Thanks @jiuker