0.0.3

Configure JitPack and update Kotlin/Java versions

This commit introduces several changes to configure JitPack building and update Kotlin/Java versions.

**JitPack Configuration:**
- A `jitpack.yml` file is added to specify JDK 17 for builds.
- iOS targets are now only built when not on JitPack (`!isCiBuild`).

**Gradle Properties:**
- `kotlin.native.ignoreDisabledTargets=true` is added to ignore disabled native targets.
- `kotlin.mpp.androidGradlePluginCompatibility.nowarn=true` is added to suppress warnings related to Android Gradle Plugin compatibility.

**Build Script (`netflow-core/build.gradle.kts`):**
- The Kotlin JVM toolchain is set to version 17.
- The `libraryVersion` is incremented from "0.0.2" to "0.0.3".
- The `publishing` block defining a GitHub Packages repository has been removed, as JitPack handles publishing.