Added python 3.13.0rc2

Author: vfdev-5

CHANGELOG.md

@@ -38,6 +38,14 @@ A brief description of the categories of changes:
 ### Added
 * (py_wheel) Now supports `compress = (True|False)` to allow disabling
   compression to speed up development.
+* (toolchains) New Python versions available: 3.13.0rc2 using the [20240909] release.
+* (toolchains): Bump default toolchain versions to:
+    * `3.8 -> 3.8.20`
+    * `3.9 -> 3.9.20`
+    * `3.10 -> 3.10.15`
+    * `3.11 -> 3.11.10`
+    * `3.12 -> 3.12.6`
+[20240909]: https://github.com/indygreg/python-build-standalone/releases/tag/20240909
 
 ### Removed
 * Nothing yet

WORKSPACE

@@ -46,7 +46,7 @@ load("//python:versions.bzl", "MINOR_MAPPING", "TOOL_VERSIONS")
 
 python_register_multi_toolchains(
     name = "python",
-    default_version = MINOR_MAPPING.values()[-2],
+    default_version = MINOR_MAPPING.values()[-3],  # Use 3.11.9
     # Integration tests verify each version, so register all of them.
     python_versions = TOOL_VERSIONS.keys(),
 )

python/versions.bzl

@@ -497,6 +497,19 @@ TOOL_VERSIONS = {
         },
         "strip_prefix": "python",
     },
+    "3.13.0": {
+        "url": "20240909/cpython-{python_version}rc2+20240909-{platform}-{build}.tar.gz",
+        "sha256": {
+            "aarch64-apple-darwin": "5d38ca1e6b030b004714e10813903e906c6b8f2a6361770df4512a838f4a4a9f",
+            "aarch64-unknown-linux-gnu": "85e103fc81a1fcf94a93180f6df42e39a7dc15d4b711705e133dc2ec847552e7",
+            "ppc64le-unknown-linux-gnu": "3be3d8aefae579c420fc6abf01658ae89fda8120154f989575b08085d2f8d6dc",
+            "s390x-unknown-linux-gnu": "6ec5130d62473368ecc7e55338bf1cc58607dbfe8088959cab51265b9f13c38d",
+            "x86_64-apple-darwin": "c3dcd4314324159945dc19342c73b9deb8de0f2d1709171427dd52f1a05eecca",
+            "x86_64-pc-windows-msvc": "31282f912e984d399c56925dfb69a4f3ce76226dfb4806b09f37e3b4a15e5a30",
+            "x86_64-unknown-linux-gnu": "028581cce5004c66775a3ae8b3ed65681ab4b289608dfd1aec3354d169216099",
+        },
+        "strip_prefix": "python",
+    },
 }
 
 # buildifier: disable=unsorted-dict-items
@@ -506,6 +519,7 @@ MINOR_MAPPING = {
     "3.10": "3.10.14",
     "3.11": "3.11.9",
     "3.12": "3.12.4",
+    "3.13": "3.13.0",
 }
 
 PLATFORMS = {