feat: Add support for .sdkmanrc file in java-version-file parameter (#736)

* chore(e2e-versions): Add e2e test scenario on `setup-java-version-from-file-major-minor-patch-with-dist` for `.sdkmanrc`

* chore(e2e-versions): Update `setup-java-version-from-file-major-minor-patch-with-dist` test to include the file name of the java-version-file that is used

* feat: Add support for `.sdkmanrc` as *Java Version File*

* chore: Add test for the latest known sdkman java versions

* docs(advanced-usage): Document support for `.sdkmanrc` as java-version-file

* chore(docs): Anyone can contribute and maintain 🤷

* Update advanced-usage.md

Add example step/file for `.sdkmanrc`

* Update advanced-usage.md

* Update util.ts

* chore: format and rebuild

* chore: untouch toolchains.ts

* fix check dist error

---------

Co-authored-by: mahabaleshwars <147705296+mahabaleshwars@users.noreply.github.com>

__tests__/util.test.ts

@@ -1,7 +1,10 @@
 import * as cache from '@actions/cache';
 import * as core from '@actions/core';
+import * as fs from 'fs';
+import * as path from 'path';
 import {
   convertVersionToSemver,
+  getVersionFromFileContent,
   isVersionSatisfies,
   isCacheFeatureAvailable,
   isGhes
@@ -82,6 +85,43 @@ describe('convertVersionToSemver', () => {
   });
 });
 
+describe('getVersionFromFileContent', () => {
+  describe('.sdkmanrc', () => {
+    it.each([
+      ['java=11.0.20.1-tem', '11.0.20'],
+      ['java = 11.0.20.1-tem', '11.0.20'],
+      ['java=11.0.20.1-tem # a comment in sdkmanrc', '11.0.20'],
+      ['java=11.0.20.1-tem\n#java=21.0.20.1-tem\n', '11.0.20'], // choose first match
+      ['java=11.0.20.1-tem\njava=21.0.20.1-tem\n', '11.0.20'], // choose first match
+      ['#java=11.0.20.1-tem\njava=21.0.20.1-tem\n', '21.0.20'] // first one is 'commented' in .sdkmanrc
+    ])('parsing %s should return %s', (content: string, expected: string) => {
+      const actual = getVersionFromFileContent(content, 'openjdk', '.sdkmanrc');
+      expect(actual).toBe(expected);
+    });
+
+    describe('known versions', () => {
+      const csv = fs.readFileSync(
+        path.join(__dirname, 'data/sdkman-java-versions.csv'),
+        'utf8'
+      );
+      const versions = csv.split('\n').map(r => r.split(', '));
+
+      it.each(versions)(
+        'parsing %s should return %s',
+        (sdkmanJavaVersion: string, expected: string) => {
+          const asContent = `java=${sdkmanJavaVersion}`;
+          const actual = getVersionFromFileContent(
+            asContent,
+            'openjdk',
+            '.sdkmanrc'
+          );
+          expect(actual).toBe(expected);
+        }
+      );
+    });
+  });
+});
+
 describe('isGhes', () => {
   const pristineEnv = process.env;