dataconnect: DateScalarIntegrationTest.kt modernized

[dconeybe]

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📝 PRs merging into main branch

Our main branch should always be in a releasable state. If you are working on a larger change, or if you don't want this change to see the light of the day just yet, consider using a feature branch first, and only merge into the main branch when the code complete and ready to be released.

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Test Results

 48 files  + 28   48 suites  +28   1m 27s ⏱️ + 1m 13s
478 tests +366  477 ✅ +365  1 💤 +1  0 ❌ ±0 
956 runs  +732  954 ✅ +730  2 💤 +2  0 ❌ ±0 

Results for commit 2841922. ± Comparison against base commit 2d6c899.

This pull request removes 112 and adds 478 tests. Note that renamed tests count towards both.

com.google.firebase.vertexai.GenerativeModelTesting ‑ addition
com.google.firebase.vertexai.SchemaTests ‑ basic schema declaration
com.google.firebase.vertexai.SchemaTests ‑ full schema declaration
com.google.firebase.vertexai.StreamingSnapshotTests ‑ citation parsed correctly
com.google.firebase.vertexai.StreamingSnapshotTests ‑ empty content
com.google.firebase.vertexai.StreamingSnapshotTests ‑ http errors
com.google.firebase.vertexai.StreamingSnapshotTests ‑ image rejected
com.google.firebase.vertexai.StreamingSnapshotTests ‑ invalid api key
com.google.firebase.vertexai.StreamingSnapshotTests ‑ invalid json
com.google.firebase.vertexai.StreamingSnapshotTests ‑ long reply
…

com.google.firebase.dataconnect.AnyValueSerializerUnitTest ‑ descriptor should have expected values
com.google.firebase.dataconnect.AnyValueSerializerUnitTest ‑ deserialize() should throw UnsupportedOperationException
com.google.firebase.dataconnect.AnyValueSerializerUnitTest ‑ serialize() should throw UnsupportedOperationException
com.google.firebase.dataconnect.AnyValueUnitTest ‑ constructor(Boolean) creates an object with the expected value
com.google.firebase.dataconnect.AnyValueUnitTest ‑ constructor(Double) creates an object with the expected value (edge cases)
com.google.firebase.dataconnect.AnyValueUnitTest ‑ constructor(Double) creates an object with the expected value (normal cases)
com.google.firebase.dataconnect.AnyValueUnitTest ‑ constructor(List) creates an object with the expected value (edge cases)
com.google.firebase.dataconnect.AnyValueUnitTest ‑ constructor(List) creates an object with the expected value (normal cases)
com.google.firebase.dataconnect.AnyValueUnitTest ‑ constructor(Map) creates an object with the expected value (edge cases)
com.google.firebase.dataconnect.AnyValueUnitTest ‑ constructor(Map) creates an object with the expected value (normal cases)
…