Add google/auth and related libraries, and update other dependencies

common/vendor/google/auth/composer.json

@@ -0,0 +1,41 @@
+{
+  "name": "google/auth",
+  "type": "library",
+  "description": "Google Auth Library for PHP",
+  "keywords": ["google", "oauth2", "authentication"],
+  "homepage": "http://github.com/google/google-auth-library-php",
+  "license": "Apache-2.0",
+  "support": {
+    "docs": "https://googleapis.github.io/google-auth-library-php/main/"
+  },
+  "require": {
+    "php": "^7.1||^8.0",
+    "firebase/php-jwt": "^5.5||^6.0",
+    "guzzlehttp/guzzle": "^6.2.1|^7.0",
+    "guzzlehttp/psr7": "^1.7|^2.0",
+    "psr/http-message": "^1.0",
+    "psr/cache": "^1.0|^2.0|^3.0"
+  },
+  "require-dev": {
+    "guzzlehttp/promises": "0.1.1|^1.3",
+    "squizlabs/php_codesniffer": "^3.5",
+    "phpunit/phpunit": "^7.5||^9.0.0",
+    "phpspec/prophecy-phpunit": "^1.1||^2.0",
+    "sebastian/comparator": ">=1.2.3",
+    "phpseclib/phpseclib": "^2.0.31||^3.0",
+    "kelvinmo/simplejwt": "0.7.0"
+  },
+  "suggest": {
+    "phpseclib/phpseclib": "May be used in place of OpenSSL for signing strings or for token management. Please require version ^2."
+  },
+  "autoload": {
+    "psr-4": {
+      "Google\\Auth\\": "src"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "Google\\Auth\\Tests\\": "tests"
+    }
+  }
+}