Bump version to 0.3.2 (#37)

The publication of 0.3.1 to PyPI failed because I forgot to change the
crate version before I pushed the tag.

Author: shsms

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "frequenz-microgrid-component-graph-python-bindings"
-version = "0.3.0"
+version = "0.3.2"
 edition = "2024"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html