Exclude ApfV{4,6}Test in CtsConnectivityMultiDevicesTestCases on GSI

ApfIntegrationTest is skipped on GSI image.
Therefore, we skipped the multidevice test cases as well.

atest result with exclude filters:
```
atest CtsConnectivityMultiDevicesTestCases -- --exclude-filter '"CtsConnectivityMultiDevicesTestCases ApfV6Test"' --exclude-filter '"CtsConnectivityMultiDevicesTestCases ApfV4Test"'
arm64-v8a CtsConnectivityMultiDevicesTestCases
----------------------------------------------
CtsConnectivityMultiDevicesTestCases (4 Tests)
[1/4] ConnectivityMultiDevicesTest#test_hotspot_upstream_cellular: PASSED (23.395s)
[2/4] ConnectivityMultiDevicesTest#test_hotspot_upstream_wifi: PASSED (25.134s)
[3/4] ConnectivityMultiDevicesTest#test_mdns_via_hotspot: PASSED (21.134s)
[4/4] ConnectivityMultiDevicesTest#test_mdns_via_wifip2p: PASSED (16.263s)
Summary (Test executed with 2 devices.)
-------
arm64-v8a CtsConnectivityMultiDevicesTestCases:CtsConnectivityMultiDevicesTestCases: Passed: 4, Failed: 0, Ignored: 0, Assumption Failed: 0
```

Test: atest CtsConnectivityMultiDevicesTestCases -- --exclude-filter '"CtsConnectivityMultiDevicesTestCases ApfV6Test"' --exclude-filter '"CtsConnectivityMultiDevicesTestCases ApfV4Test"'
Bug: 402667362
Change-Id: I69946467e6ea36ea300faaf8b1f6dd252cbb94a0