Update dependency pytest to v9

| datasource | package | from  | to    |
| ---------- | ------- | ----- | ----- |
| pypi       | pytest  | 8.3.5 | 9.0.0 |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

tests/requirements.txt

@@ -1,3 +1,3 @@
 boto3==1.38.7
-pytest==8.3.5
+pytest==9.0.0
 requests==2.32.3