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.

build.gradle

@@ -1,4 +1,8 @@
 buildscript {
+    ext {
+        kotlin_version = '1.8.20'
+    }
+
     repositories {
         google()
         mavenCentral()
@@ -6,8 +10,10 @@ buildscript {
 
     dependencies {
         // NOTE: Always use fixed version codes not dynamic ones, e.g. 0.7.3 instead of 0.7.+, see README for more information
-        classpath 'com.android.tools.build:gradle:4.2.2'
-        classpath 'com.squareup.sqldelight:gradle-plugin:0.8.0'
+        classpath 'com.android.tools.build:gradle:7.4.2'
+        // classpath 'com.squareup.sqldelight:gradle-plugin:0.8.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.squareup.sqldelight:gradle-plugin:1.5.4'
     }
 }