Fix OpenSSL source url

- I guess they changed it, idk?

Author: aharpervc

ext/tiny_tds/extconsts.rb

@@ -3,7 +3,7 @@
 ICONV_SOURCE_URI = "http://ftp.gnu.org/pub/gnu/libiconv/libiconv-#{ICONV_VERSION}.tar.gz"
 
 OPENSSL_VERSION = ENV['TINYTDS_OPENSSL_VERSION'] || '1.1.1d'
-OPENSSL_SOURCE_URI = "https://www.openssl.org/source/openssl-#{OPENSSL_VERSION}.tar.gz"
+OPENSSL_SOURCE_URI = "https://www.openssl.org/source/old/1.1.1/openssl-#{OPENSSL_VERSION}.tar.gz"
 
 FREETDS_VERSION = ENV['TINYTDS_FREETDS_VERSION'] || "1.1.24"
 FREETDS_VERSION_INFO = Hash.new { |h,k|