Permission protect stageAllHealthConnectRemoteData

The new APIs added in this topic's other CL are protected by knownSigner
permission.

The CTS test app can not be granted this permission.
Granting these permissions to the Shell and the CTS test app can adopt
the Shell's identity to get the necessary permissions and call these
APIs.

The test api is protected by the platform signature permission.

Bug: 243145978
Test: atest CtsHealthConnectDeviceTestCases
Change-Id: Ica89151b28213fd6fee69f5390f3d4e7f92bdc73