Bug 11124: QA Follow-up adding optional dependency HTTPD::Bench::ApacheBench

This dependency is used in load testing (misc/load_testing/*)

Test plan:
Check if you see the dependency listed on About/Perl modules.
Verify if the version information is correct.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>

C4/Installer/PerlDependencies.pm

@@ -699,6 +699,11 @@ our $PERL_DEPS = {
         'required' => '1',
         'min_ver'  => '0.008',
     },
+    'HTTPD::Bench::ApacheBench' => {
+        'usage'    => 'Load testing',
+        'required' => '0',
+        'min_ver'  => '0.73',
+    },
 };
 
 1;