Add INTERACT_ACROSS_USERS_FULL to test for setCurrentProxyScriptUrl

If the test passes uid from another user which requires
INTERACT_ACROSS_USERS_FULL permission to bind service.

Bug: 192114565
Test: atest CtsNetTestCases:PacProxyManagerTest
Change-Id: I2ddff09b4c9cda1e7c5f3566662ba9cc07fffaae
1 file changed