Use httpx instead of anyio for reinstall test (#1732)

This works on Windows.

crates/uv/tests/pip_install.rs

@@ -319,38 +319,12 @@ fn respect_installed_and_reinstall() -> Result<()> {
 
 /// Respect installed versions when resolving.
 #[test]
-#[cfg(not(windows))]
 fn reinstall_extras() -> Result<()> {
     let context = TestContext::new("3.12");
 
-    // Install anyio.
+    // Install httpx.
     let requirements_txt = context.temp_dir.child("requirements.txt");
-    requirements_txt.write_str("anyio")?;
-
-    uv_snapshot!(command(&context)
-        .arg("-r")
-        .arg("requirements.txt")
-        .arg("--strict"), @r###"
-    success: true
-    exit_code: 0
-    ----- stdout -----
-
-    ----- stderr -----
-    Resolved 3 packages in [TIME]
-    Downloaded 3 packages in [TIME]
-    Installed 3 packages in [TIME]
-     + anyio==4.0.0
-     + idna==3.4
-     + sniffio==1.3.0
-    "###
-    );
-
-    context.assert_command("import anyio").success();
-
-    // Re-install anyio, with an extra.
-    let requirements_txt = context.temp_dir.child("requirements.txt");
-    requirements_txt.touch()?;
-    requirements_txt.write_str("anyio[trio]")?;
+    requirements_txt.write_str("httpx")?;
 
     uv_snapshot!(command(&context)
         .arg("-r")
@@ -362,16 +336,44 @@ fn reinstall_extras() -> Result<()> {
 
     ----- stderr -----
     Resolved 7 packages in [TIME]
-    Downloaded 4 packages in [TIME]
-    Installed 4 packages in [TIME]
-     + attrs==23.1.0
-     + outcome==1.3.0.post0
-     + sortedcontainers==2.4.0
-     + trio==0.23.1
+    Downloaded 7 packages in [TIME]
+    Installed 7 packages in [TIME]
+     + anyio==4.0.0
+     + certifi==2023.11.17
+     + h11==0.14.0
+     + httpcore==1.0.2
+     + httpx==0.25.1
+     + idna==3.4
+     + sniffio==1.3.0
     "###
     );
 
-    context.assert_command("import anyio").success();
+    context.assert_command("import httpx").success();
+
+    // Re-install httpx, with an extra.
+    let requirements_txt = context.temp_dir.child("requirements.txt");
+    requirements_txt.touch()?;
+    requirements_txt.write_str("httpx[http2]")?;
+
+    uv_snapshot!(command(&context)
+        .arg("-r")
+        .arg("requirements.txt")
+        .arg("--strict"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+
+    ----- stderr -----
+    Resolved 10 packages in [TIME]
+    Downloaded 3 packages in [TIME]
+    Installed 3 packages in [TIME]
+     + h2==4.1.0
+     + hpack==4.0.0
+     + hyperframe==6.0.1
+    "###
+    );
+
+    context.assert_command("import httpx").success();
 
     Ok(())
 }