Gate remaining Android integration tests off linux-arm64

Completes the arm64 gating begun in #22327 for the last two Android-driving
java integration tests, so all 10 (the 8 already merged + these) are
deselected on linux-arm64 while mac-arm64 and x86_64 stay green.

android-8-sample: AGP 8.0.0 ships no linux-aarch64 aapt2 (Google's Maven
publishes only linux/osx/windows classifiers), so the build fails on
linux-arm64 with an x86-64 aapt2 exec'd on aarch64.

android-gradle-incompatibility: gated to avoid conflating that same
x86_64-only aapt2 build failure on linux-arm64 with the AGP/Gradle-version
incompatibility failure this test asserts (otherwise the test would pass
for the wrong reason).

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: redsun82

java/ql/integration-tests/java/android-8-sample/test.py

@@ -1,4 +1,9 @@
+import runs_on
+
+
 # Put Java 11 on the path so as to challenge our version selection logic: Java 11 is unsuitable for Android Gradle Plugin 8+,
 # so it will be necessary to notice Java 17 available in the environment and actively select it.
+# This Android Gradle Plugin version ships no linux-aarch64 aapt2, so the build fails on linux-arm64 (macOS arm64 works).
+@(runs_on.x86_64 or runs_on.macos)
 def test(codeql, use_java_11, java, gradle_8_0, android_sdk):
     codeql.database.create()

java/ql/integration-tests/java/diagnostics/android-gradle-incompatibility/test.py

@@ -1,2 +1,7 @@
+import runs_on
+
+
+# Deselected on linux-arm64: the build also fails there due to the x86_64-only aapt2 gap, which would conflate with the AGP/Gradle-incompatibility failure this test asserts.
+@(runs_on.x86_64 or runs_on.macos)
 def test(codeql, java, gradle_7_3, android_sdk):
     codeql.database.create(_assert_failure=True)