Add SAPI builds CI label

Author: jassem-manita

.github/matrix.php

@@ -50,6 +50,7 @@ function get_current_version(): array {
 function select_jobs($repository, $trigger, $nightly, $labels, $php_version, $ref, $all_variations) {
     $no_jobs = in_array('CI: No jobs', $labels, true);
     $all_jobs = in_array('CI: All jobs', $labels, true) || $nightly;
+    $test_sapi_builds = in_array('CI: SAPI builds', $labels, true);
     $test_alpine = in_array('CI: Alpine', $labels, true);
     $test_benchmarking = in_array('CI: Benchmarking', $labels, true);
     $test_community = in_array('CI: Community', $labels, true);
@@ -160,7 +161,7 @@ function select_jobs($repository, $trigger, $nightly, $labels, $php_version, $re
             ? ['zts' => [true, false]]
             : ['zts' => [false]];
     }
-    if ($all_jobs) {
+    if ($all_jobs || $test_sapi_builds) {
         $jobs['APACHE_SAPI'] = true;
         $jobs['LITESPEED_SAPI'] = true;
     }