Update to tiny_tds 2.1.5

Add patch to avoid warning on Ruby 3.2.

databases/ruby-tiny_tds/Makefile

@@ -1,6 +1,6 @@
 COMMENT =	simple and fast ruby binding to FreeTDS
 
-DISTNAME =	tiny_tds-2.1.4
+DISTNAME =	tiny_tds-2.1.5
 CATEGORIES =	databases
 
 HOMEPAGE =	https://github.com/rails-sqlserver/tiny_tds

databases/ruby-tiny_tds/distinfo

@@ -1,2 +1,2 @@
-SHA256 (tiny_tds-2.1.4.gem) = xniC7Qs5QWi1gvk8e8RtmekzyGAH84OkBqyEksS/hzs=
-SIZE (tiny_tds-2.1.4.gem) = 62464
+SHA256 (tiny_tds-2.1.5.gem) = yYtl9VoRW+q7rkFhei8UYiaCNaKGCN3Agzb/wm8vyhk=
+SIZE (tiny_tds-2.1.5.gem) = 62976

databases/ruby-tiny_tds/patches/patch-ext_tiny_tds_result_c

@@ -0,0 +1,13 @@
+Avoid warning on Ruby 3.2+.
+
+Index: ext/tiny_tds/result.c
+--- ext/tiny_tds/result.c.orig
++++ ext/tiny_tds/result.c
+@@ -582,6 +582,7 @@ void init_tinytds_result() {
+   cDate = rb_const_get(rb_cObject, rb_intern("Date"));
+   /* Define TinyTds::Result */
+   cTinyTdsResult = rb_define_class_under(mTinyTds, "Result", rb_cObject);
++  rb_undef_alloc_func(cTinyTdsResult);
+   /* Define TinyTds::Result Public Methods */
+   rb_define_method(cTinyTdsResult, "fields", rb_tinytds_result_fields, 0);
+   rb_define_method(cTinyTdsResult, "each", rb_tinytds_result_each, -1);