Restore zap.../composer-drupal-optimizations

A Composer2 no-op version is available.
Folks running composer 1 locally will appreciate it.

upstream-configuration/.gitignore

@@ -0,0 +1,17 @@
+composer.lock
+/vendor/
+.csslintrc
+.editorconfig
+.eslintignore
+.eslintrc.json
+.gitattributes
+.ht.router.php
+.htaccess
+INSTALL.txt
+README.txt
+autoload.php
+example.gitignore
+index.php
+robots.txt
+update.php
+web.config

upstream-configuration/composer.json

@@ -1,5 +1,5 @@
 {
-    "name": "internal/upstream-configuration",
+    "name": "pantheon-upstreams/upstream-configuration",
     "type": "project",
     "version": "1.0.0",
     "repositories": [
@@ -19,7 +19,8 @@
         "drupal/console": "^1",
         "cweagans/composer-patches": "^1.7",
         "drupal/config_direct_save": "^1.0",
-        "drush-ops/behat-drush-endpoint": "^9.3"
+        "drush-ops/behat-drush-endpoint": "^9.3",
+        "zaporylie/composer-drupal-optimizations": "^1.2"
     },
     "require-dev": {
         "behat/behat": "3.*",