minor #22430 [Console] Add throws PHPDoc in Application::run() (maidmaid)

This PR was merged into the 2.7 branch.

Discussion
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[Console] Add throws PHPDoc in Application::run()

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | /
| License       | MIT
| Doc PR        | /

Same idea than merged #22411.

Commits
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28332afb38 Add trhows PHPDoc in Application::run

src/Symfony/Component/Console/Application.php

@@ -103,6 +103,8 @@ class Application
      * @param OutputInterface $output An Output instance
      *
      * @return int 0 if everything went fine, or an error code
+     *
+     * @throws \Exception When running fails. Bypass this when {@link setCatchExceptions()}.
      */
     public function run(InputInterface $input = null, OutputInterface $output = null)
     {