Update AGP to 7.4.2, update SqlDelight to 1.4.2

The adaptations to SqlDelight 1.4.2 leave the type namings *extremely*
messy. But it works and is as semantically equivalent as I could make
it.

sshauthentication-api/build.gradle

@@ -2,18 +2,16 @@ apply plugin: 'com.android.library'
 apply plugin: 'maven-publish'
 
 android {
-    if (project.hasProperty('compileSdkVersion')) {
-        compileSdkVersion rootProject.ext.compileSdkVersion
-    } else {
-        compileSdkVersion 28
-    }
-
-
     defaultConfig {
         minSdkVersion 14
-        targetSdkVersion 28
-        versionCode 2
-        versionName "2.0"
+        versionCode 3
+        versionName "3.0"
+        namespace 'org.openintents.ssh.authentication'
+        if (project.hasProperty('compileSdkVersion')) {
+            compileSdk rootProject.ext.compileSdkVersion
+        } else {
+            compileSdk 28
+        }
     }
 
     // Do not abort build if lint finds errors