Update Gradle to 8.1 and AGP to v8.0 (#329)

* Update AGP to 8.0.0.

* Set JAVA_HOME to JDK17

* Update lint version.

* Use right JDK for dependency analysis, replace deprecated env var.

* Upgrade to Gradle 8.1.

* Remove `@Supress(DSL_SCOPE_VIOLATION)` as it's no longer needed.

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

libraries/core/build.gradle.kts

@@ -13,9 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
-// TODO: Remove once https://youtrack.jetbrains.com/issue/KTIJ-19369 is fixed
-@Suppress("DSL_SCOPE_VIOLATION")
 plugins {
     id("java-library")
     id("com.android.lint")
@@ -23,8 +20,8 @@ plugins {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
 }
 
 dependencies {