IMPALA-5079: Bump timeout for TestKuduOperations
IMPALA-5079: Bump timeout for TestKuduOperations

Tests seem to be timing out similarly to IMPALA-4454. Bump
the timeout to unblock tests for now.

TODO: untangle the use of all the fancy pytest fixtures, they
may be leaking state between test cases

Change-Id: I5fd8e5eb5dbd977c386e6557941a2c47de44f344
Reviewed-on: http://gerrit.cloudera.org:8080/6453
Reviewed-by: Matthew Jacobs <df2fa7c39d141dc5dc5589fed74180e757ed6c9a@cloudera.com>
Tested-by: Impala Public Jenkins

michaelhkw/incubator-impala,michaelhkw/incubator-impala,michaelhkw/incubator-impala,cloudera/Impala,michaelhkw/incubator-impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,michaelhkw/incubator-impala,cloudera/Impala,cloudera/Impala,michaelhkw/incubator-impala,cloudera/Impala,michaelhkw/incubator-impala