Update OSS to minSdk 24 (#45906)

Summary:
Pull Request resolved: #45906

- Updating RNTester and React Native to minSdk 24 targeting 0.76 release as [announced](react-native-community/discussions-and-proposals#802)

**Changelog:**
[Android][Breaking] - updating `minSdkVersion` to API 24 (Android 7)

Reviewed By: cortinico, mdvacca

Differential Revision: D60790790

fbshipit-source-id: 961141867e7238157e5e6e72ede0f73bd31901a2

packages/react-native/ReactAndroid/src/main/AndroidManifest.xml

@@ -8,7 +8,7 @@
    up from the file to lint until it find an AndroidManifest with a minSdkVersion. This is then used
    as the min SDK to lint the file.-->
   <uses-sdk
-      android:minSdkVersion="23"
+      android:minSdkVersion="24"
       android:targetSdkVersion="34"
       />
 

packages/react-native/gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 # Android versions
-minSdk = "23"
+minSdk = "24"
 targetSdk = "34"
 compileSdk = "34"
 buildTools = "34.0.0"