ec2_vol/test: gives more time to convert vol to gp3 (#739) (#742)

[PR #739/df865b4c backport][stable-2] ec2_vol/test: gives more time to convert vol to gp3

This is a backport of PR #739 as merged into main (df865b4).
We give 9s to convert the volumne to gp3, in some cases this is not
enough.
Closes: #738

Reviewed-by: Mark Chappell <None>

tests/integration/targets/ec2_vol/tasks/main.yml

@@ -512,7 +512,7 @@
         volume_type: gp3
         modify_volume: yes
       register: changed_gp3_volume
-      retries: 3
+      retries: 10
       delay: 3
       until: not changed_gp3_volume.failed
       # retry because ebs change is to slow