Fix emit_index_annotation_multiple_indexes test case (#14277)

uv is taken on Test PyPI now, so the existing test fails

crates/uv/tests/it/pip_compile.rs

@@ -12806,28 +12806,34 @@ fn emit_index_annotation_multiple_indexes() -> Result<()> {
     let context = TestContext::new("3.12");
 
     let requirements_in = context.temp_dir.child("requirements.in");
-    requirements_in.write_str("uv\nrequests")?;
+    requirements_in.write_str("httpcore\nrequests")?;
 
     uv_snapshot!(context.filters(), context.pip_compile()
         .arg("requirements.in")
         .arg("--extra-index-url")
         .arg("https://test.pypi.org/simple")
-        .arg("--emit-index-annotation"), @r###"
+        .arg("--emit-index-annotation"), @r"
     success: true
     exit_code: 0
     ----- stdout -----
     # This file was autogenerated by uv via the following command:
     #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-annotation
+    certifi==2016.8.8
+        # via httpcore
+        # from https://test.pypi.org/simple
+    h11==0.14.0
+        # via httpcore
+        # from https://pypi.org/simple
+    httpcore==1.0.4
+        # via -r requirements.in
+        # from https://pypi.org/simple
     requests==2.5.4.1
         # via -r requirements.in
         # from https://test.pypi.org/simple
-    uv==0.1.24
-        # via -r requirements.in
-        # from https://pypi.org/simple
 
     ----- stderr -----
-    Resolved 2 packages in [TIME]
-    "###
+    Resolved 4 packages in [TIME]
+    "
     );
 
     Ok(())