ops: adjust vermin to use 3.10 as the new minimum Python version

.pre-commit-config.yaml

@@ -17,4 +17,4 @@ repos:
   rev: v1.6.0
   hooks:
   - id: vermin
-    args: ['-t=3.9-', '--violations', '--eval-annotations', '--no-tips']
+    args: ['-t=3.10-', '--violations', '--eval-annotations', '--no-tips']