Update version (#217)

Cargo.toml

 [package]
 name = "tiled"
-version = "0.10.1"
+version = "0.10.2"
 description = "A rust crate for loading maps created by the Tiled editor"
 categories = ["game-development"]
 keywords = ["gamedev", "tiled", "tmx", "map"]

README.md

 # rs-tiled
 ```toml
-tiled = "0.10.1"
+tiled = "0.10.2"
 ```
 
 [![Rust](https://github.com/mapeditor/rs-tiled/actions/workflows/rust.yml/badge.svg)](https://github.com/mapeditor/rs-tiled/actions/workflows/rust.yml)