Fix several occurrences of the phrase “This options” (#13053)

## Summary

Fixes several occurrences of the minor typo “This options” for “This
option.”
<!-- What's the purpose of the change? What does it do, and why? -->

## Test Plan

<!-- How was it tested? -->
Since this is just a typo fix in documentation and comment strings, no
particular testing was conducted.

## Notes

The typo fixes in `crates/uv-cli/src/lib.rs` would affect
`docs/reference/cli.md`. I assumed you might want to just re-generate
the reference documention, but fixing it up manually would look like:

```diff
diff --git a/docs/reference/cli.md b/docs/reference/cli.md
index 338fa0ff9..8851ca2c0 100644
--- a/docs/reference/cli.md
+++ b/docs/reference/cli.md
@@ -355,7 +355,7 @@ uv run [OPTIONS] [COMMAND]
 
 </dd><dt id="uv-run--no-group"><a href="#uv-run--no-group"><code>--no-group</code></a> <i>no-group</i></dt><dd><p>Disable the specified dependency group.</p>
 
-<p>This options always takes precedence over default groups, <code>--all-groups</code>, and <code>--group</code>.</p>
+<p>This option always takes precedence over default groups, <code>--all-groups</code>, and <code>--group</code>.</p>
 
 <p>May be provided multiple times.</p>
 
@@ -1757,7 +1757,7 @@ uv sync [OPTIONS]
 
 </dd><dt id="uv-sync--no-group"><a href="#uv-sync--no-group"><code>--no-group</code></a> <i>no-group</i></dt><dd><p>Disable the specified dependency group.</p>
 
-<p>This options always takes precedence over default groups, <code>--all-groups</code>, and <code>--group</code>.</p>
+<p>This option always takes precedence over default groups, <code>--all-groups</code>, and <code>--group</code>.</p>
 
 <p>May be provided multiple times.</p>
 
@@ -2492,7 +2492,7 @@ uv export [OPTIONS]
 
 </dd><dt id="uv-export--no-group"><a href="#uv-export--no-group"><code>--no-group</code></a> <i>no-group</i></dt><dd><p>Disable the specified dependency group.</p>
 
-<p>This options always takes precedence over default groups, <code>--all-groups</code>, and <code>--group</code>.</p>
+<p>This option always takes precedence over default groups, <code>--all-groups</code>, and <code>--group</code>.</p>
 
 <p>May be provided multiple times.</p>
 
@@ -2855,7 +2855,7 @@ uv tree [OPTIONS]
 
 </dd><dt id="uv-tree--no-group"><a href="#uv-tree--no-group"><code>--no-group</code></a> <i>no-group</i></dt><dd><p>Disable the specified dependency group.</p>
 
-<p>This options always takes precedence over default groups, <code>--all-groups</code>, and <code>--group</code>.</p>
+<p>This option always takes precedence over default groups, <code>--all-groups</code>, and <code>--group</code>.</p>
 
 <p>May be provided multiple times.</p>
 
```

crates/uv-build/python/uv_build/__init__.py

@@ -21,7 +21,7 @@ if TYPE_CHECKING:
     from collections.abc import Mapping, Sequence  # noqa:I001
     from typing import Any  # noqa:I001
 
-# Use the `uv build-backend` command rather than `uv-build`. This options is provided
+# Use the `uv build-backend` command rather than `uv-build`. This option is provided
 # for downstream distributions who provide `uv` and wish to avoid building a partially
 # overlapping `uv-build` executable.
 USE_UV_EXECUTABLE = False