Wordpress cURL error 60: SSL certificate problem

Question

I am getting cURL error 60: SSL certificate problem, tried some solutions to fix it, but nothing worked, I tried:

1 Updated certificate:

if( isset( $_GET['update-wp-ca-bundle'] ) ){

    $crt_file = ABSPATH . WPINC . '/certificates/ca-bundle.crt';
    $new_crt_url = 'http://curl.haxx.se/ca/cacert.pem';

        if( is_writable( $crt_file ) ){
            $new_str = file_get_contents( $new_crt_url );
    
            if( $new_str && strpos( $new_str, 'Bundle of CA Root Certificates' ) ){
                $up = file_put_contents( $crt_file, $new_str );
    
                echo $up ? 'OK: ca-bundle.crt updated' : 'ERROR: can`t put data to ca-bundle.crt';
            }
            else {
                echo 'ERROR: can\'t download curl.haxx.se/ca/cacert.pem';
            }
        }
        else {
            echo 'ERROR: ca-bundle.crt not writable';
        }
    
        exit;
    }

Then Visited: https://example.com/?update-wp-ca-bundle Certificate got updated.

still issue not fixed.

2. Tried bypassing ssl verify: https://wordpress.org/plugins/ssl-certificate-manager/

Still it is not fixed.

PHP Version: 7.2

SSL Version : OpenSSL/1.0.2g

As I can see, SSL certificate is valid, it is not expired.