Add Symfony Deprecation Contracts package

- Created CHANGELOG.md to maintain version history.
- Added README.md with usage instructions for the trigger_deprecation() function.
- Initialized composer.json for the Symfony Deprecation Contracts library, specifying dependencies and autoloading.

modules/pshowsso/deps/patrickbussmann/oauth2-apple/test/ext/KeyDumpSigner8.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace League\OAuth2\Client\Test;
+
+use Lcobucci\JWT\Signer;
+use Lcobucci\JWT\Signer\Key;
+
+final class KeyDumpSigner implements Signer
+{
+    public function algorithmId(): string
+    {
+        return 'keydump';
+    }
+
+    public function sign(string $payload, Key $key): string
+    {
+        return $key->contents();
+    }
+
+    public function verify(string $expected, string $payload, Key $key): bool
+    {
+        return $expected === $key->contents();
+    }
+}