Fix argument comment lint tests after rust-clippy branch rename (#58013)

## Why

Dylint 6.1.0 still checks out rust-clippy's removed `master` branch.

## What changed

Run the argument comment lint package tests through a compatibility wrapper in both Rust CI workflows. The wrapper temporarily aliases rust-clippy's `main` branch to `master` using Git configuration scoped to that repository, preserves existing Git configuration entries, and forwards arguments to `cargo test`.

GitOrigin-RevId: 016d09c4ef71259f7d4eca4409f753bf66ae9e18

.github/workflows/rust-ci-full.yml

@@ -85,7 +85,7 @@ jobs:
         run: python3 -m unittest discover -s tools/argument-comment-lint -p 'test_*.py'
       - name: Test argument comment lint package
         working-directory: tools/argument-comment-lint
-        run: cargo test
+        run: bash ./test-with-clippy-compat.sh
         env:
           RUST_MIN_STACK: "8388608" # 8 MiB
 

.github/workflows/rust-ci.yml

@@ -153,7 +153,7 @@ jobs:
         run: python3 -m unittest discover -s tools/argument-comment-lint -p 'test_*.py'
       - name: Test argument comment lint package
         working-directory: tools/argument-comment-lint
-        run: cargo test
+        run: bash ./test-with-clippy-compat.sh
         env:
           RUST_MIN_STACK: "8388608" # 8 MiB
 

tools/argument-comment-lint/test-with-clippy-compat.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Dylint 6.1.0 still checks out rust-clippy's removed master branch. Add an
+# alias only to that clone until we upgrade to a Dylint version that uses main.
+clippy_config="$(mktemp)"
+trap 'rm -f -- "$clippy_config"' EXIT
+git config --file "$clippy_config" remote.origin.fetch '+refs/heads/main:refs/heads/master'
+
+config_index="${GIT_CONFIG_COUNT:-0}"
+export "GIT_CONFIG_KEY_${config_index}=includeIf.hasconfig:remote.*.url:https://github.com/rust-lang/rust-clippy.path"
+export "GIT_CONFIG_VALUE_${config_index}=$clippy_config"
+GIT_CONFIG_COUNT="$((config_index + 1))" cargo test "$@"