check_mirrors: add missing --fast argument for "fast" runs

refs: tails/tails#17755

manifests/check_mirrors.pp

@@ -92,7 +92,7 @@ class tails::check_mirrors (
 
   # Fast run #1: optimized for European morning
   cron { 'tails_check_mirrors':
-    command     => "sleep \$(( \$( </dev/urandom od -N2 -t u2 -A none ) >> 5 )) && \"${repo_checkout}/check-mirrors.rb --store-failures failures.json\"",
+    command     => "sleep \$(( \$( </dev/urandom od -N2 -t u2 -A none ) >> 5 )) && \"${repo_checkout}/check-mirrors.rb --fast --store-failures failures.json\"",
     user        => $user,
     hour        => 4,
     minute      => 16,
@@ -103,7 +103,7 @@ class tails::check_mirrors (
 
   # Fast run #2: optimized for American morning
   cron { 'tails_check_mirrors':
-    command     => "sleep \$(( \$( </dev/urandom od -N2 -t u2 -A none ) >> 5 )) && \"${repo_checkout}/check-mirrors.rb --store-failures failures.json\"",
+    command     => "sleep \$(( \$( </dev/urandom od -N2 -t u2 -A none ) >> 5 )) && \"${repo_checkout}/check-mirrors.rb --fast --store-failures failures.json\"",
     user        => $user,
     hour        => 12,
     minute      => 16,
@@ -114,7 +114,7 @@ class tails::check_mirrors (
 
   # Fast run #3: to complete the 3 × 8 shifts
   cron { 'tails_check_mirrors':
-    command     => "sleep \$(( \$( </dev/urandom od -N2 -t u2 -A none ) >> 5 )) && \"${repo_checkout}/check-mirrors.rb --store-failures failures.json\"",
+    command     => "sleep \$(( \$( </dev/urandom od -N2 -t u2 -A none ) >> 5 )) && \"${repo_checkout}/check-mirrors.rb --fast --store-failures failures.json\"",
     user        => $user,
     hour        => 20,
     minute      => 16,