Currently, ConnectivityCoverageTests is manually set to target
SDK 31. This is different from CtsNetTestCasesLatestSdk, and
CtsTetheringTestLatestSdk, which are set to 33 and 31
respectively. Set all of them to 33 via a defaults clause.
ConnectivityCoverageTests must have the same target SDK as CTS
because it includes many of the CTS tests (e.g., everything in
common/).
Bug: 236087258
Test: atest ConnectivityCoverageTests
Test: atest CtsNetTestCasesLatestSdk
Test: atest CtsTetheringTestLatestSdk
Change-Id: I88c16dc28d9b73557def25d7f669ed14ae9d360a