New issue templates forms

New issue templates forms

Noting fancy. we could add checkbox and/or dropdowns if needed

**To test**: to go my fork. Link https://github.com/CaselIT/sqlalchemy/issues/new/choose

See docs at
https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/syntax-for-issue-forms
https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/syntax-for-githubs-form-schema

Closes: #6809
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/6809
Pull-request-sha: 21beb5a44104ced9e43bb5342a4cdf5f5efcb02a

Change-Id: I74c671aa2790b9f08c20b0659625c8a91b5b9c72