Prepare 1.3.0 release

[vitcpp]

Deal All, I think we are close to release 1.3.0 version.

I would like to do some polishing to complete 1.3.0:

• Polish some upgrade scripts to avoid code duplication
• Test upgrade scripts
• Investigate and remove init_test

Please, let me know if you think that the release is not ready. What changes should be implemented as well? Thank you.

[esabol]

I think we are close to release 1.3.0 version.

I agree!

[vitcpp]

I propose to keep init_test because it tests schema creation SQL but it should be improved in the future.

https://github.com/postgrespro/pgsphere/issues/54#issuecomment-1695403440

[vitcpp]

Found an issue with the upgrade script (#59).

[vitcpp]

I think, release 1.3.0 is ready. I propose to create the release tag.

[esabol]

I think, release 1.3.0 is ready. I propose to create the release tag.

I agree!

[vitcpp]

Dear Sirs, the Release 1.3.0 is ready. Thank you very much for the contributions and reviews!