Add SonarQube scan workflow

This commit introduces a Gitea workflow to trigger
SonarQube scans on pushes to the `main` branch and
on pull requests.

build.gradle.kts

@@ -6,6 +6,7 @@ plugins {
     // this is necessary to avoid the plugins to be loaded multiple times
     // in each subproject's classloader
     alias(libs.plugins.versions)
+    alias(libs.plugins.sonarqube)
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.android.library) apply false
     alias(libs.plugins.compose) apply false
@@ -15,6 +16,13 @@ plugins {
     alias(libs.plugins.jetbrains.kotlin.android) apply false
 }
 
+sonar {
+    properties {
+        property("sonar.projectKey", "YAEP")
+        property("sonar.projectName", "YAEP")
+    }
+}
+
 tasks.withType<KotlinJvmCompile>().configureEach {
     compilerOptions {
         jvmTarget.set(JvmTarget.fromTarget(libs.versions.jdk.get()))