feat: Add option to set dist on sourcemaps

Adds support for `dist` as input value for GitHub Action:

```yaml
    - uses: getsentry/action-release@v1
      with:
        environment: 'production'
        sourcemaps: './lib'
        dist: ${{ github.sha }}
```

Note that this repo uses `@sentry/cli@^1.67.2` and there is a related fix in `2.3.1`:

> fix: move dist option to SentryCliUploadSourceMapsOptions (#1269) by @ikenfin
> [changelog](https://github.com/getsentry/sentry-cli/blob/master/CHANGELOG.md#231)

This fix was to move the `dist` option from being under `SentryCliOptions` (incorrect) to be under `SentryCliUploadSourceMapsOptions` (correct)

This does not affect the GH action as those types are not referenced directly by the action.

Resolves #74

README.md

@@ -62,6 +62,7 @@ Adding the following to your workflow will create a new Sentry release and tell
 |`ignore_missing`|When the flag is set and the previous release commit was not found in the repository, will create a release with the default commits count instead of failing the command.|`false`|
 |`ignore_empty`|When the flag is set, command will not fail and just exit silently if no new commits for a given release have been found.|`false`|
 |`sourcemaps`|Space-separated list of paths to JavaScript sourcemaps. Omit to skip uploading sourcemaps.|-|
+|`dist`|Unique identifier for the distribution, used to further segment your release. Usually your build number. _Note: Required when uploading sourcemaps._|-|
 |`started_at`|Unix timestamp of the release start date. Omit for current time.|-|
 |`version`|Identifier that uniquely identifies the releases. _Note: the `refs/tags/` prefix is automatically stripped when `version` is `github.ref`._|<code>${{&nbsp;github.sha&nbsp;}}</code>|
 |`version_prefix`|Value prepended to auto-generated version. For example "v".|-|
@@ -79,6 +80,7 @@ Adding the following to your workflow will create a new Sentry release and tell
       with:
         environment: 'production'
         sourcemaps: './lib'
+        dist: ${{ github.sha }}
     ```
 
 - Create a new Sentry release for the `production` environment of your project at version `v1.0.1`.

__tests__/main.test.ts

@@ -3,6 +3,7 @@ import * as path from 'path';
 import * as process from 'process';
 import {
   getBooleanOption,
+  getDist,
   getSourcemaps,
   getStartedAt,
   getVersion,
@@ -66,6 +67,21 @@ describe('options', () => {
     });
   });
 
+  describe('getDist', () => {
+    afterEach(() => {
+      delete process.env['INPUT_DIST'];
+    });
+
+    test('should return undefined when dist is omitted', async () => {
+      expect(getDist()).toBeUndefined();
+    });
+
+    test('should return a string when dist is provided', () => {
+      process.env['INPUT_DIST'] = 'foo-dist';
+      expect(getDist()).toEqual('foo-dist');
+    });
+  });
+
   describe('getStartedAt', () => {
     const errorMessage =
       'started_at not in valid format. Unix timestamp or ISO 8601 date expected';

action.yml

@@ -8,6 +8,9 @@ inputs:
   sourcemaps:
     description: 'Space-separated list of paths to JavaScript sourcemaps. Omit to skip uploading sourcemaps.'
     required: false
+  dist:
+    description: 'Unique identifier for the distribution, used to further segment your release. Usually your build number.'
+    required: false
   finalize:
     description: 'When false, omit marking the release as finalized and released.'
     default: true

src/main.ts

@@ -11,6 +11,7 @@ import * as options from './options';
 
     const environment = options.getEnvironment();
     const sourcemaps = options.getSourcemaps();
+    const dist = options.getDist();
     const shouldFinalize = options.getBooleanOption('finalize', true);
     const ignoreMissing = options.getBooleanOption('ignore_missing', false);
     const ignoreEmpty = options.getBooleanOption('ignore_empty', false);
@@ -45,6 +46,7 @@ import * as options from './options';
           const sourceMapOptions = {
             include: sourcemaps,
             projects: localProjects,
+            dist,
             urlPrefix,
             stripCommonPrefix,
           };

src/options.ts

@@ -81,6 +81,19 @@ export const getSourcemaps = (): string[] => {
   return sourcemapsOption.split(' ');
 };
 
+/**
+ * Dist is optional, but should be a string when provided.
+ * @returns string
+ */
+export const getDist = (): string | undefined => {
+  const distOption: string = core.getInput('dist');
+  if (!distOption) {
+    return undefined;
+  }
+
+  return distOption;
+};
+
 /**
  * Fetch boolean option from input. Throws error if option value is not a boolean.
  * @param input string