Instrumentation test suite passes again

[jamesonwilliams]

Contributor checklist

• I am following the Code Style Guidelines
• I have tested my contribution on these devices:

• Pixel 8 API 34 emulator

• My contribution is fully baked and ready to be merged as is
• I ensure that all the open issues my contribution fixes are mentioned in the commit message of my first commit using the Fixes #1234 syntax

---

Description

Currently when I run the connect device suite, e.g., ./gradlew clean :Signal-Android:connectedAndroidTest, V2ConversationItemShapeTest will fail with errors like this:

org.thoughtcrime.securesms.conversation.v2.items.V2ConversationItemShapeTest > givenNextAndPreviousMessageDoNotExist_whenISetMessageShape_thenIExpectSingle[Pixel_8_API_34(AVD) - 14]
        io.mockk.MockKException: Can't instantiate proxy for class com.bumptech.glide.RequestManager
        at io.mockk.impl.instantiation.JvmMockFactory.newProxy(JvmMockFactory.kt:64)

Instead of using MockK in the Instrumentation tests, we should probably be using some real objects (or our own fakes). A simple solution, sufficient to get the test passing again, is to replace the mocks with real components.

Testing

After changes:

./gradlew clean :Signal-Android:connectedAndroidTest

[...snip...]
Finished 298 tests on Pixel_8_API_34(AVD) - 14

BUILD SUCCESSFUL in 28m
463 actionable tasks: 433 executed, 30 up-to-date

./gradlew qa

[...snip...]

BUILD SUCCESSFUL in 4m 19s
1020 actionable tasks: 180 executed, 840 up-to-date