Add repro example for platform downloads

examples/repro/.gitignore

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+bazel-*

examples/repro/BUILD.bazel

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+load("@pip//:requirements.bzl", "all_requirements", "requirement")
+load("@rules_python//python:defs.bzl", "py_test")
+load("@rules_uv//uv:pip.bzl", "pip_compile")
+
+pip_compile(
+    name = "generate_requirements",
+    python_platform = "aarch64-unknown-linux-gnu",
+    requirements_in = "requirements.in",
+    requirements_txt = "requirements.txt",
+)
+
+py_test(
+    name = "test",
+    srcs = ["test_load.py"],
+    main = "test_load.py",
+    deps = all_requirements,
+)

examples/repro/MODULE.bazel

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+module(
+    name = "platform_specific_deps",
+    version = "0.0.0",
+    compatibility_level = 1,
+)
+
+bazel_dep(name = "bazel_skylib", version = "1.7.1")
+bazel_dep(name = "rules_python", version = "0.0.0")
+
+# TODO: Replace with builtin uv support if it supports platform specific requirements output
+bazel_dep(name = "rules_uv", version = "0.56.0")
+
+local_path_override(
+    module_name = "rules_python",
+    path = "../..",
+)
+
+python = use_extension("@rules_python//python/extensions:python.bzl", "python")
+python.toolchain(
+    python_version = "3.12",
+)
+
+pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
+pip.parse(
+    experimental_index_url = "https://pypi.org/simple",  # use Bazel downloader
+    experimental_target_platforms = [
+        "linux_x86_64",
+        "linux_aarch64",
+        "osx_aarch64",
+    ],
+    hub_name = "pip",
+    python_version = "3.12",
+    requirements_lock = "requirements.txt",
+)
+use_repo(pip, "pip")

examples/repro/requirements.in

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+locust