Set max_microversion 2.35 for nova security group tests

The compute os-security-groups API is deprecated from the
Microversion 2.36, so we should set max_microversion = '2.35'
for compute security group tests.

Implements blueprint: clear-deprecated-api

Change-Id: I2084ddcac0f8b4b9f81e5263ac4058939418626d
4 files changed