chore: fix some minor issues in comments (#14807)

<!--
Thank you for contributing to uv! To help us out with reviewing, please
consider the following:

- Does this pull request include a summary of the change? (See below.)
- Does this pull request include a descriptive title?
- Does this pull request include references to any relevant issues?
-->

## Summary

 fix some minor issues in comments

<!-- What's the purpose of the change? What does it do, and why? -->

## Test Plan

<!-- How was it tested? -->

Signed-off-by: pingshuijie <pingshuijie@outlook.com>

crates/uv/src/commands/project/environment.rs

@@ -63,7 +63,7 @@ impl EphemeralEnvironment {
     /// environment's `site-packages` directory to Python's import search paths in addition to
     /// the ephemeral environment's `site-packages` directory. This works well at runtime, but
     /// is too dynamic for static analysis tools like ty to understand. As such, we
-    /// additionally write the `sys.prefix` of the parent environment to to the
+    /// additionally write the `sys.prefix` of the parent environment to the
     /// `extends-environment` key of the ephemeral environment's `pyvenv.cfg` file, making it
     /// easier for these tools to statically and reliably understand the relationship between
     /// the two environments.

crates/uv/tests/it/pip_compile.rs

@@ -12186,7 +12186,7 @@ requires-python = ">3.8"
 fn prerelease_path_requirement() -> Result<()> {
     let context = TestContext::new("3.12");
 
-    // Create an a package that requires a pre-release version of `flask`.
+    // Create a package that requires a pre-release version of `flask`.
     let pyproject_toml = context.temp_dir.child("pyproject.toml");
     pyproject_toml.write_str(
         r#"[project]
@@ -12240,7 +12240,7 @@ requires-python = ">3.8"
 fn prerelease_editable_requirement() -> Result<()> {
     let context = TestContext::new("3.12");
 
-    // Create an a package that requires a pre-release version of `flask`.r
+    // Create a package that requires a pre-release version of `flask`.r
     let pyproject_toml = context.temp_dir.child("pyproject.toml");
     pyproject_toml.write_str(
         r#"[project]

crates/uv/tests/it/version.rs

@@ -1993,7 +1993,7 @@ fn version_set_workspace() -> Result<()> {
         );
     });
 
-    // Set the other child's version, refereshing the lock and sync
+    // Set the other child's version, refreshing the lock and sync
     let mut version_cmd = context.version();
     version_cmd
         .arg("--package")