feat(toolchains): Add armv7 linux platform to available toolchain platforms (#1770)

Author: UebelAndre

CHANGELOG.md

@@ -35,6 +35,8 @@ A brief description of the categories of changes:
 
 ### Added
 
+* (toolchains) Added armv7 platform definition for python toolchains.
+
 * New Python versions available: `3.11.8`, `3.12.2` using
   https://github.com/indygreg/python-build-standalone/releases/tag/20240224.
 * (gazelle) Added a new `python_visibility` directive to control visibility

python/versions.bzl

@@ -454,6 +454,14 @@ PLATFORMS = {
         # repository_ctx.execute(["uname", "-m"]).stdout.strip()
         arch = "aarch64",
     ),
+    "armv7-unknown-linux-gnu": struct(
+        compatible_with = [
+            "@platforms//os:linux",
+            "@platforms//cpu:armv7",
+        ],
+        os_name = LINUX_NAME,
+        arch = "armv7",
+    ),
     "ppc64le-unknown-linux-gnu": struct(
         compatible_with = [
             "@platforms//os:linux",