buildpack not working on heroku-22 stack

[JewlsIOB]

I believe there is some configuration problem with this heroku buildpack and the heroku-22 stack. Here are a few things I have tried:

• Installing with different FREETDS_VERSION settings (and none at all)
• with the main branch of this code, 1.1.2 and 1.1.1 versions, and same problem
• On my local macbook, I can run the freetds tsql connection command to connect almost instantaneously to a variety of mssql databases (one on ec2 and two on azure), but the same command times out on heroku bash prompt:

~ $ tsql -H ***.rds.amazonaws.com -p 1433 -U *** -P ***
locale is "en_US.UTF-8"
locale charset is "UTF-8"
using default charset "UTF-8"
103Error 20002 (severity 9):
	Adaptive Server connection failed
Error 20002 (severity 9):
	Adaptive Server connection failed
There was a problem connecting to the server

• I can ping the server from heroku bash:

~ $ nslookup <host1>.us-east-1.rds.amazonaws.com
Server:		<ip address>
Address:	<ip address>#53

Non-authoritative answer:
<host1>.rds.amazonaws.com	canonical name = <host name>.compute-1.amazonaws.com.
Name:	<host name>.compute-1.amazonaws.com
Address: <another ip address>

~ $ nc -zv <host1>us-east-1.rds.amazonaws.com 1433
Connection to <host1>.us-east-1.rds.amazonaws.com (<another ip address>) 1433 port [tcp/ms-sql-s] succeeded!

Any ideas would be greatly appreciated!

[JewlsIOB]

For some more information, here is FreeTDS version local and remote. I did no special "configuration" file settings other than setting the TDS_VERSION to 7.3 when installing the buildpack on heroku.

# LOCAL:
$ tsql -C
Compile-time settings (established with the "configure" script)
                            Version: freetds v1.3.13
             freetds.conf directory: /opt/homebrew/etc
     MS db-lib source compatibility: no
        Sybase binary compatibility: yes
                      Thread safety: yes
                      iconv library: yes
                        TDS version: 7.3
                              iODBC: no
                           unixodbc: yes
              SSPI "trusted" logins: no
                           Kerberos: yes
                            OpenSSL: yes
                             GnuTLS: no
                               MARS: yes

# Heroku:
$ heroku run bash -a <app>
Running bash on ⬢ <app>.. up, run.4557 (Hobby)
~ $ tsql -C
Compile-time settings (established with the "configure" script)
                            Version: freetds v1.3.13
             freetds.conf directory: /app/freetds/etc
     MS db-lib source compatibility: no
        Sybase binary compatibility: no
                      Thread safety: yes
                      iconv library: yes
                        TDS version: 7.3
                              iODBC: no
                           unixodbc: no
              SSPI "trusted" logins: no
                           Kerberos: no
                            OpenSSL: yes
                             GnuTLS: no
                               MARS: yes