`PIP_REQUIRE_VIRTUALENV` breaks installation of dependencies from `.tar.gz` URIs

# 🐞 bug report

### Affected Rule

This might be related to how `wheel_installer` is invoked.

### Is this a regression?

No, 1.4.1 and https://github.com/bazel-contrib/rules_python/pull/3115 (commit https://github.com/bazel-contrib/rules_python/commit/75871bbb9b33723c60565de0d7959c3262f87337) have this problem. 1.5.0 and 1.5.1 likely also have this problem, but I can't confirm since `.tar.gz` installation is broken in those releases (see #3131).

### Description

Running a `py_test` target with `PIP_REQUIRE_VIRTUALENV` set to `true` results in errors if one of the dependencies is installed from a `.tar.gz` URI.
Adding `common --action_env PIP_REQUIRE_VIRTUALENV=false` to `.bazelrc` can be used as a workaround.

## 🔬 Minimal Reproduction

`export PIP_REQUIRE_VIRTUALENV=true` in the shell. Then follow the minimal reproduction steps in #3131 but for `rules_python` 1.4.1 or https://github.com/bazel-contrib/rules_python/pull/3115 (commit https://github.com/bazel-contrib/rules_python/commit/75871bbb9b33723c60565de0d7959c3262f87337). 1.5.0 and 1.5.1 would fail with a different error due to #3131.

## 🔥 Exception or Error

  error: subprocess-exited-with-error


  × pip subprocess to install build dependencies did not run successfully.

  │ exit code: 3

  ╰─> [1 lines of output]

      ERROR: Could not find an activated virtualenv (required).

      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.

error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.

│ exit code: 3

╰─> See above for output.

## 🌍 Your Environment

**Operating System:**

  

Linux

  

**Output of `bazel version`:**

  

Bazelisk version: development

Build label: 8.1.1

Build target: @@//src/main/java/com/google/devtools/build/lib/bazel:BazelServer

Build time: Tue Feb 25 18:50:42 2025 (1740509442)

Build timestamp: 1740509442

Build timestamp as int: 1740509442

  

**Rules_python version:**

  

1.4.1, 75871bbb9b33723c60565de0d7959c3262f87337

  

**Anything else relevant?**

使用 rules_python 1.4.1 和 PIP_REQUIRE_VIRTUALENV=true，从 #3131 中引用的最小复现步骤开始。检查针对 .tar.gz 依赖项调用 wheel_installer 的方式；当一个 py_test 目标能够成功安装该依赖项且不需要 .bazelrc workaround 时，即视为完成。

由索引模型根据 Issue 内容生成。