Issues connecting to Redshift Serverless via DBeaver and DataGrip

What I have:

- a Redshift Serverless instance (publicly accessible)
- an admin user
- a user/pass user
- me, an IAM user

I then try to connect to the workgroup using the following URL:
```
jdbc:redshift:iam://[wg-name].[account].[region].redshift-serverless.amazonaws.com:5439/dev?profile=[my profile]
```

I get the following error in dbeaver:

And this is DataGrip (using no-auth just uri and using the builtin `AWS Credentials` auth):
```
DBMS: Amazon Redshift (no ver.)
Case sensitivity: plain=mixed, delimited=exact
[99999] Something unusual has occurred to cause the driver to fail. Please report this exception:Invalid property format: no = character is found on line 15
Invalid property format: no '=' character is found on line 15.
```

notes:
- Both have SSL turned on.
- Both tools can connect using the non `iam` jdbc URL with user/pass auth, where the values are pulled from `aws redshift-serverless get-credentials --workgroup-name[wg-name]`
- other user/pass users work fine
- Console query access via `iam federated access` works fine too.

How can I correct the tools settings to use the `iam` profile auth correctly?

Start by reproducing the JDBC URL in DBeaver and DataGrip with the Redshift Serverless workgroup and IAM profile settings shown. Read the driver’s IAM authentication and connection-property handling around the “no = character” error, then verify the correction by connecting successfully with the IAM profile while user/password connections continue to work.

Written by the indexing model from the issue text.