[#253] Update S3 clients and permission matrixes

Signed-off-by: a.berezin <a.berezin@yadro.com>

src/frostfs_testlib/utils/string_utils.py

@@ -1,12 +1,26 @@
 import random
 import re
 import string
+from datetime import datetime
 
 ONLY_ASCII_LETTERS = string.ascii_letters
 DIGITS_AND_ASCII_LETTERS = string.ascii_letters + string.digits
 NON_DIGITS_AND_LETTERS = string.punctuation
 
 
+def unique_name(prefix: str = ""):
+    """
+    Generate unique short name of anything with prefix.
+    This should be unique in scope of multiple runs
+
+    Args:
+        prefix: prefix for unique name generation
+    Returns:
+        unique name string
+    """
+    return f"{prefix}{hex(int(datetime.now().timestamp() * 1000000))}"
+
+
 def random_string(length: int = 5, source: str = ONLY_ASCII_LETTERS):
     """
     Generate random string from source letters list