bump supported graalpy to v25.0 (PyO3#5542)

* github/workflows: bump CI graalpy to v25.0

* docs: update README to reflect graalpy v25 support

* newsfragments: add PR

* pyo3-build-config: bump MINIMUM_SUPPORTED_VERSION_GRAALPY to (25, 0)

Author: bazaah

.github/workflows/ci.yml

@@ -235,7 +235,7 @@ jobs:
             "3.14",
             "3.14t",
             "pypy3.11",
-            "graalpy24.2",
+            "graalpy25.0",
           ]
         platform:
           [

README.md

@@ -21,7 +21,7 @@ Requires Rust 1.74 or greater.
 PyO3 supports the following Python distributions:
   - CPython 3.7 or greater
   - PyPy 7.3 (Python 3.11+)
-  - GraalPy 24.2 or greater (Python 3.11+)
+  - GraalPy 25.0 or greater (Python 3.12+)
 
 You can use PyO3 to write a native Python module in Rust, or to embed Python in a Rust binary. The following sections explain each of these in turn.
 

newsfragments/5542.packaging.md

@@ -0,0 +1 @@
+Bump supported GraalPy version to 25.0.

pyo3-build-config/src/impl_.rs

@@ -35,7 +35,7 @@ pub(crate) const MINIMUM_SUPPORTED_VERSION: PythonVersion = PythonVersion { majo
 
 /// GraalPy may implement the same CPython version over multiple releases.
 const MINIMUM_SUPPORTED_VERSION_GRAALPY: PythonVersion = PythonVersion {
-    major: 24,
+    major: 25,
     minor: 0,
 };