Create file with helper functions

To avoid code repetition I created a file,
which contains function that can be reused.
[MAILPOET-6097]

.github/workflows/scripts/helpers.php

@@ -0,0 +1,47 @@
+<?php
+
+function replaceVersionInFile($filePath, $pattern, $replacement) {
+  $content = file_get_contents($filePath);
+
+  if ($content === false) {
+    die("Failed to read the file at $filePath.");
+  }
+
+  $updatedContent = preg_replace($pattern, $replacement, $content);
+
+  if ($updatedContent === null || $updatedContent === $content) {
+    echo "Nothing to update in $filePath\n";
+    return;
+  }
+
+  if (file_put_contents($filePath, $updatedContent) === false) {
+    die("Failed to write the updated file at $filePath.");
+  }
+}
+
+function filterStableVersions($versions) {
+  return array_filter($versions, function($version) {
+    // Only include stable versions (exclude versions with -rc, -beta, -alpha, etc.)
+    return preg_match('/^\d+\.\d+\.\d+$/', $version);
+  });
+}
+
+function getLatestAndPreviousMinorMajorVersions($versions) {
+  usort($versions, 'version_compare');
+  $currentVersion = end($versions);
+
+  $previousVersion = null;
+  foreach (array_reverse($versions) as $version) {
+    if (version_compare($version, $currentVersion, '<') && getMinorMajorVersion($version) !== getMinorMajorVersion($currentVersion)) {
+      $previousVersion = $version;
+      break;
+    }
+  }
+
+  return [$currentVersion, $previousVersion];
+}
+
+function getMinorMajorVersion($version) {
+  $parts = explode('.', $version);
+  return $parts[0] . '.' . $parts[1];
+}