Fix data type errors creating nonmajor_safety_and_security_events tables

[erikamov]

Description

This PR fixes data type errors and adds new columns from the Non Major Safety and Security Events.
Also removes extra CTEs to reduce costs on processing the query.

Resolves [#3745]

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation

How has this been tested?

Tested locally and models created on staging.

Post-merge follow-ups

• No action required
• Actions required (specified below)

Check transform_warehouse logs to confirm no more errors from this table.

[ohrite]

🍐 Paired w/ @erikamov

[github-actions]

Warehouse report 📦

DAG

Legend (in order of precedence)

Resource type	Indicator	Resolution
Large table-materialized model	Orange	Make the model incremental
Large model without partitioning or clustering	Orange	Add partitioning and/or clustering
View with more than one child	Yellow	Materialize as a table or incremental
Incremental	Light green
Table	Green
View	White