Add files from Perforce //main/clients/Hibernate/6.6/community/

[isc-service]

Automated contribution from Perforce depot: //main/clients/Hibernate/6.6/community/

Files added: 5
Destination: hibernate-community-dialects/src/main/java/org/hibernate/community/dialect

[hibernate-github-bot]

Thanks for your pull request!

This pull request does not follow the contribution rules. Could you have a look?

❌ All commit messages should start with a JIRA issue key matching pattern HHH-\d+
    ↳ Offending commits: [45a2359, 877f3fa, 98b4a39, 4375e02, 6b1efa4]
❌ The pull request description must contain the license agreement text.
    ↳ The description of this pull request must contain the following license agreement text:

----------------------
By submitting this pull request, I confirm that my contribution is made under the terms of the [Apache 2.0 license](https://www.apache.org/licenses/LICENSE-2.0.txt)
and can be relicensed under the terms of the [LGPL v2.1 license](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt) in the future at the maintainers' discretion.
For more information on licensing, please check [here](https://github.com/hibernate/hibernate-orm/blob/main/CONTRIBUTING.md#legal).

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› This message was automatically generated.

[beikov]

Please make sure that all files have the following header:

/*
 * SPDX-License-Identifier: Apache-2.0
 * Copyright Red Hat Inc. and Hibernate Authors
 */

Also, please run ./gradlew :hibernate-community-dialects:check locally to ensure your changes pass our build checks.