chore: update README.md for v1.0.0-rc1 (#1558)

Automated update of `README.md` for release v1.0.0-rc1

This pull request was created by
[cgrindel/gha_create_release](https://github.com/cgrindel/gha_create_release).

Co-authored-by: cgrindel <[email protected]>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Author: 3 people

README.md

@@ -87,11 +87,9 @@ common --enable_bzlmod
 Add a dependency on `rules_swift_package_manager`.
 
 <!-- BEGIN MODULE SNIPPET -->
-
 ```python
-bazel_dep(name = "rules_swift_package_manager", version = "0.47.2")
+bazel_dep(name = "rules_swift_package_manager", version = "1.0.0-rc1")
 ```
-
 <!-- END MODULE SNIPPET -->
 
 In addition, add the following to load the external dependencies described in your `Package.swift`