Added Feature - Add MustParseBytes to support byte-slice UUID parsing

[hamid-husain]

This pull request adds the MustParseBytes function to the uuid package.

While the package currently provides MustParse for strings, there was no equivalent helper for []byte inputs. This addition ensures API symmetry and simplifies the initialization of global variables or constants when the source UUID is represented as a byte slice (e.g., from a database driver or network buffer).

Changes

• Added MustParseBytes([]byte) UUID which wraps ParseBytes.
• Logic mirrors MustParse, including the panic behavior on failure to ensure it is safe for package-level variable initialization.
• Includes a descriptive panic message consistent with the existing MustParse implementation.

Example Usage
var namespace = uuid.MustParseBytes([]byte("6ba7b810-9dad-11d1-80b4-00c04fd430c8"))

Checklists

• Code follows the existing style of the repository.
• Function is documented with comments.
• No breaking changes introduced.

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