MLBEDSW-7734: Update Sized import from collections

Update import of Sized from collections to collections.abc to work with
Python 3.10

Change-Id: Iae281db9402331972ad13660d04523608b23614d
Signed-off-by: Rickard Bolin <rickard.bolin@arm.com>
diff --git a/ethosu/vela/utils.py b/ethosu/vela/utils.py
index 386ba35..6a36897 100644
--- a/ethosu/vela/utils.py
+++ b/ethosu/vela/utils.py
@@ -26,7 +26,7 @@
     enabled: bool,
     message: str,
     progress_counter: int = -1,
-    progress_total: int | collections.Sized = 0,
+    progress_total: int | collections.abc.Sized = 0,
     progress_granularity: float = 0.20,
 ):
     """Print progress information.
@@ -67,7 +67,7 @@
     context_str += ": " if message else ""
     display_total = progress_total
     # If a sized collection is provided, extract its size to use as progress total
-    if isinstance(progress_total, collections.Sized):
+    if isinstance(progress_total, collections.abc.Sized):
         progress_total = len(progress_total)
         display_total = progress_total - 1