Publish package:intl4x: 0.11.0 (#953)

* Update publishing workflow
Publish new version

---

- [x] I’ve reviewed the contributor guide and applied the relevant portions to this PR.

<details>
  <summary>Contribution guidelines:</summary><br>

- See our [contributor guide](https://github.com/dart-lang/.github/blob/main/CONTRIBUTING.md) for general expectations for PRs.
- Larger or significant changes should be discussed in an issue before creating a PR.
- Contributions to our repos should follow the [Dart style guide](https://dart.dev/guides/language/effective-dart) and use `dart format`.
- Most changes should add an entry to the changelog and may need to [rev the pubspec package version](https://github.com/dart-lang/sdk/blob/main/docs/External-Package-Maintenance.md#making-a-change).
- Changes to packages require [corresponding tests](https://github.com/dart-lang/.github/blob/main/CONTRIBUTING.md#Testing).

Note that many Dart repos have a weekly cadence for reviewing PRs - please allow for some latency before initial review feedback.
</details>

* Pin rustup

Author: mosuem

.github/workflows/intl4x.yml

@@ -102,7 +102,7 @@ jobs:
 
     - name: Install Rust toolchains
       run: |
-        rustup toolchain install stable
+        rustup toolchain install 1.78
     
     - name: Show the selected Rust toolchain
       run: rustup show

pkgs/intl4x/CHANGELOG.md

@@ -1,4 +1,4 @@
-## 0.11.0-wip
+## 0.11.0
 
 - Remove dep on package:js.
 - Introduce link hook.

pkgs/intl4x/pubspec.yaml

@@ -1,7 +1,7 @@
 name: intl4x
 description: >-
   A lightweight modular library for internationalization (i18n) functionality.
-version: 0.11.0-wip
+version: 0.11.0
 repository: https://github.com/dart-lang/i18n/tree/main/pkgs/intl4x
 issue_tracker: https://github.com/dart-lang/i18n/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Aintl4x