Restore PHP 8 shmop and Redis checks

Co-authored-by: Kanti <471387+Kanti@users.noreply.github.com>

Author: Copilot

tests/serverspec/spec/shared/php/modules.rb

@@ -100,10 +100,13 @@
 
 shared_examples 'php8::modules' do
     describe command('php -m') do
+        its(:stdout) { should     contain('shmop') }
         its(:stdout) { should     contain('Zend OPcache') }
 
         if ( $testConfiguration[:phpRedis] )
             its(:stdout) { should     contain('redis') }
+        else
+            its(:stdout) { should_not contain('redis') }
         end
 
         its(:exit_status) { should eq 0 }
@@ -205,6 +208,7 @@
 
 shared_examples 'php-fpm8::modules' do
     describe command('curl --insecure --silent --retry 10 --fail http://localhost/php-test.php?test=get_loaded_extensions') do
+        its(:stdout) { should     contain('shmop') }
         its(:stdout) { should     contain('Zend OPcache') }
 
         if ( $testConfiguration[:phpRedis] )