Add test deps

Makefile.PL

@@ -15,6 +15,14 @@ WriteMakefile(
       },
     },
   },
+  BUILD_REQUIRES => {
+    'FindBin'                => '0',
+    'Test::More'             => '0',
+    'Test::MockModule'       => '0',
+    'Test::Deep'             => '0',
+    'Test::Fatal'            => '0',
+    'Test::MockFile'         => '0',
+  },
   PREREQ_PM => {
     'CGI::Cookie'            => '0',
     'Capture::Tiny'          => '0',