test: O11Y-908 - Add Android CI workflows (#337)

## Summary
Introduces GitHub Actions workflows for Android E2E and Observability
unit tests, enabling automated test runs on push and pull requests.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Introduces CI for Android testing and aligns tests with minor API
changes.
> 
> - Adds `Android E2E App Tests` workflow
(`.github/workflows/android-e2e.yml`) to run `:app:testDebugUnitTest`
for `e2e/android`, setting up JDK 17 and Android SDK, and uploading
JUnit XML artifacts
> - Adds `Android Observability` workflow
(`.github/workflows/android-observability.yml`) to run
`:lib:testDebugUnitTest` for `sdk/@launchdarkly/observability-android`,
with artifact uploads
> - Updates `SessionReplayExporterTest.kt`: sets `sessionId = null` in
`IdentifyItemPayload` and uses `attributes` accessor instead of
`getAttributes()` when mocking `LogRecordData`
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
4b02c29. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: agrognetti

.github/workflows/android-e2e.yml

@@ -0,0 +1,51 @@
+name: 'Android E2E App Tests'
+
+on:
+    push:
+        branches: ['main']
+        paths:
+            - 'e2e/android/**'
+            - 'sdk/@launchdarkly/observability-android/**'
+            - '.github/workflows/android-e2e.yml'
+    pull_request:
+        types: [opened, synchronize]
+        paths:
+            - 'e2e/android/**'
+            - 'sdk/@launchdarkly/observability-android/**'
+            - '.github/workflows/android-e2e.yml'
+
+permissions:
+    contents: read
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+jobs:
+    test:
+        name: E2E Tests
+        runs-on: ubuntu-22.04-8core-32gb
+        defaults:
+            run:
+                working-directory: ./e2e/android
+        steps:
+            - uses: actions/checkout@v4
+              with:
+                  token: ${{ secrets.GITHUB_TOKEN }}
+
+            - name: Set up JDK 17
+              uses: actions/setup-java@v4
+              with:
+                  distribution: 'temurin'
+                  java-version: 17
+
+            - name: Set up Android SDK
+              uses: android-actions/setup-android@9fc6c4e9069bf8d3d10b2204b1fb8f6ef7065407 # v3.2.2 commit SHA - https://github.com/android-actions/setup-android/releases/tag/v3.2.2
+
+            - name: Run unit tests
+              run: ./gradlew :app:testDebugUnitTest
+
+            - name: Upload test reports
+              if: always()
+              uses: actions/upload-artifact@v4
+              with:
+                  name: android-e2e-unit-test-results
+                  path: e2e/android/**/build/test-results/**/TEST-*.xml
+                  retention-days: 7

.github/workflows/android-observability.yml

@@ -0,0 +1,49 @@
+name: 'Android Observability'
+
+on:
+    push:
+        branches: ['main']
+        paths:
+            - 'sdk/@launchdarkly/observability-android/**'
+            - '.github/workflows/android-observability.yml'
+    pull_request:
+        types: [opened, synchronize]
+        paths:
+            - 'sdk/@launchdarkly/observability-android/**'
+            - '.github/workflows/android-observability.yml'
+
+permissions:
+    contents: read
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+jobs:
+    test:
+        name: Unit Tests
+        runs-on: ubuntu-22.04-8core-32gb
+        defaults:
+            run:
+                working-directory: ./sdk/@launchdarkly/observability-android
+        steps:
+            - uses: actions/checkout@v4
+              with:
+                  token: ${{ secrets.GITHUB_TOKEN }}
+
+            - name: Set up JDK 17
+              uses: actions/setup-java@v4
+              with:
+                  distribution: 'temurin'
+                  java-version: 17
+
+            - name: Set up Android SDK
+              uses: android-actions/setup-android@9fc6c4e9069bf8d3d10b2204b1fb8f6ef7065407 # v3.2.2 commit SHA - https://github.com/android-actions/setup-android/releases/tag/v3.2.2
+
+            - name: Run unit tests
+              run: ./gradlew :lib:testDebugUnitTest
+
+            - name: Upload test reports
+              if: always()
+              uses: actions/upload-artifact@v4
+              with:
+                  name: android-unit-test-results
+                  path: sdk/@launchdarkly/observability-android/**/build/test-results/**/TEST-*.xml
+                  retention-days: 7

sdk/@launchdarkly/observability-android/lib/src/test/kotlin/com/launchdarkly/observability/replay/SessionReplayExporterTest.kt

@@ -22,7 +22,9 @@ class SessionReplayExporterTest {
 
     private val identifyEvent = IdentifyItemPayload(
         attributes = mapOf("key" to "user"),
-        timestamp = 0L)
+        timestamp = 0L,
+        sessionId = null
+    )
 
     @BeforeEach
     fun setUp() {
@@ -465,7 +467,7 @@ class SessionReplayExporterTest {
         sessionId?.let { attributesBuilder.put(AttributeKey.stringKey("session.id"), it) }
 
         return mockk<LogRecordData>().apply {
-            every { getAttributes() } returns attributesBuilder.build()
+            every { attributes } returns attributesBuilder.build()
             every { observedTimestampEpochNanos } returns timestamp
         }
     }