libs: Bump minSdk to API 23

androidx framework has bumped minSdk requirement to API 23. Most libs dependening
upon the framework as a result require us to bump API level or keep using outdated versions.

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

Author: theimpulson

app/build.gradle.kts

@@ -42,7 +42,7 @@ configure<ApplicationExtension> {
     defaultConfig {
         applicationId = "org.schabi.newpipe"
         resValue("string", "app_name", "NewPipe")
-        minSdk = 21
+        minSdk = 23
         targetSdk = 35
 
         versionCode = System.getProperty("versionCodeOverride")?.toInt() ?: 1010