fix(plugin-js-packages): add provenance attestations

Author: matejchalk

CONTRIBUTING.md

@@ -12,25 +12,6 @@ Make sure to install dependencies:
 npm install
 ```
 
-## Environment Variables
-
-This table provides a quick overview of the environmental setup, with detailed explanations in the corresponding sections.
-
-| Feature                         | Local Default | CI Default       | Description                                                                                                                   |
-| ------------------------------- | ------------- | ---------------- | ----------------------------------------------------------------------------------------------------------------------------- |
-| `env.INCLUDE_SLOW_TESTS` **❗️** | `false`       | `true`           | Controls inclusion of long-running tests. Overridden by setting. Details in the [Testing](#Testing) section.                  |
-| `env.CUSTOM_CHROME_PATH`        | N/A           | Windows **❗️❗️** | Path to Chrome executable. See [plugin-lighthouse/CONTRIBUTING.md](./packages/plugin-lighthouse/CONTRIBUTING.md#chrome-path). |
-| Quality Pipeline                | Off           | On               | Runs all plugins against the codebase.                                                                                        |
-
-**❗️** Test Inclusion Logic
-
-- `INCLUDE_SLOW_TESTS='false'` skips long tests.
-- Without `INCLUDE_SLOW_TESTS`, tests run if `CI` is set.
-
-**❗️❗️** Windows specific path set only in CI
-
-- Some setups also require this setting locally.
-
 ## Development
 
 Refer to docs on [how to run tasks in Nx](https://nx.dev/core-features/run-tasks).
@@ -119,3 +100,22 @@ The following optional folders can be present in a project root;
 - `mocks` - test fixtures and utilities specific for a given project
 - `docs` - files related to documentation
 - `tooling` - tooling related code
+
+## Environment Variables
+
+This table provides a quick overview of the environmental setup, with detailed explanations in the corresponding sections.
+
+| Feature                         | Local Default | CI Default       | Description                                                                                                                   |
+| ------------------------------- | ------------- | ---------------- | ----------------------------------------------------------------------------------------------------------------------------- |
+| `env.INCLUDE_SLOW_TESTS` **❗️** | `false`       | `true`           | Controls inclusion of long-running tests. Overridden by setting. Details in the [Testing](#Testing) section.                  |
+| `env.CUSTOM_CHROME_PATH`        | N/A           | Windows **❗️❗️** | Path to Chrome executable. See [plugin-lighthouse/CONTRIBUTING.md](./packages/plugin-lighthouse/CONTRIBUTING.md#chrome-path). |
+| Quality Pipeline                | Off           | On               | Runs all plugins against the codebase.                                                                                        |
+
+**❗️** Test Inclusion Logic
+
+- `INCLUDE_SLOW_TESTS='false'` skips long tests.
+- Without `INCLUDE_SLOW_TESTS`, tests run if `CI` is set.
+
+**❗️❗️** Windows specific path set only in CI
+
+- Some setups also require this setting locally.