fix: Remove type creation for postgresql (#3438)

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# Description

The last alembic migration definitions fail when using PostgreSQL as the
database. This PR fixes this by allowing upgrade and downgrade properly.
For more info about the problem, see here
sqlalchemy/alembic#886


**Type of change**

(Please delete options that are not relevant. Remember to title the PR
according to the type of change)

- [X] Bug fix (non-breaking change which fixes an issue)

**How Has This Been Tested**

Changes have been tested using a local database to apply migrations
(update and downgrade)

**Checklist**

- [ ] I added relevant documentation
- [ ] follows the style guidelines of this project
- [ ] I did a self-review of my code
- [ ] I made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I filled out [the contributor form](https://tally.so/r/n9XrxK)
(see text above)
- [ ] I have added relevant notes to the CHANGELOG.md file (See
https://keepachangelog.com/)

---------

Co-authored-by: Francisco Aranda <francisco@recogn.ai>

CHANGELOG.md

@@ -16,6 +16,12 @@ These are the section headers that we use:
 
 ## [Unreleased]
 
+## [1.13.1](https://github.com/argilla-io/argilla/compare/v1.13.0...v1.13.1)
+
+### Fixed
+
+- Fix database migration for PostgreSQL (See [#3438](https://github.com/argilla-io/argilla/pull/3438))
+
 ## [1.13.0](https://github.com/argilla-io/argilla/compare/v1.12.1...v1.13.0)
 
 ### Added

src/argilla/server/alembic/versions/3fc3c0839959_create_suggestions_table.py

@@ -32,11 +32,6 @@
 
 
 def upgrade() -> None:
-    bind = op.get_bind()
-
-    if bind.dialect.name == "postgresql":
-        suggestion_type_enum.create(bind)
-
     # ### commands auto generated by Alembic - please adjust! ###
     op.create_table(
         "suggestions",
@@ -70,5 +65,6 @@ def downgrade() -> None:
     op.drop_table("suggestions")
     # ### end Alembic commands ###
 
+    # For this see here: https://github.com/sqlalchemy/alembic/issues/886
     if bind.dialect.name == "postgresql":
         suggestion_type_enum.drop(bind)