chore: use newer runtimes and let nginx serve static files (GoogleCloudPlatform#2058)

Author: SarthakAjmera26

appengine/flexible/staticcontent/app.yaml

@@ -3,3 +3,8 @@ env: flex
 
 runtime_config:
   document_root: web
+  operating_system: ubuntu22
+  runtime_version: 8.3
+
+build_env_variables:
+  NGINX_SERVES_STATIC_FILES: true

compute/firewall/src/print_firewall_rule.php

@@ -54,9 +54,9 @@ function print_firewall_rule(string $projectId, string $firewallRuleName)
     printf('Self Link: %s' . PHP_EOL, $response->getSelfLink());
     printf('Logging Enabled: %s' . PHP_EOL, var_export($response->getLogConfig()->getEnable(), true));
     print('--Allowed--' . PHP_EOL);
-    foreach ($response->getAllowed() as $item) {
+    foreach ($response->getAllowed()as $item) {
         printf('Protocol: %s' . PHP_EOL, $item->getIPProtocol());
-        foreach ($item->getPorts()as $ports) {
+        foreach ($item->getPorts() as $ports) {
             printf(' - Ports: %s' . PHP_EOL, $ports);
         }
     }