[github-actions]

• Fix log template sync failing when a custom SQL Alchemy schema is configured

When sql_alchemy_schema is set, reflect_tables() derived the schema to
reflect a mapped class's table under by splitting its bare tablename
on a dot, which discards the schema entirely for classes like
LogTemplate whose table name has no dot. synchronize_log_template()
then looked up the reflected table by that same bare name, which also
does not match how SQLAlchemy keys schema-qualified tables in the
reflected metadata. Together these left the log_template table
unrecognized under a custom schema, causing triggering a Dag to fail
with a TypeError.

Derive the schema from the mapped class's own configured table instead
of parsing its name, and look the reflected table up by its schema
-qualified key.

• Add newsfragment for log template custom schema fix

• Remove newsfragment for log template custom schema fix

Not needed for this change per review feedback.

• Use inspect().local_table instead of getattr for the mapped class's schema

getattr(tbl, "table") worked around table not being declared on
MappedClassProtocol, but SQLAlchemy's inspect() already exposes the same
table through a properly typed Mapper.local_table, so the getattr and its
explanatory comment are no longer needed.
(cherry picked from commit 6aee277)

Co-authored-by: Aaryan Mahajan aaryanmhjn@gmail.com

[github-actions]

Hi maintainer, this PR was merged without a milestone set.
We've automatically set the milestone to Airflow 3.4.1 based on: bug fix merged to version branch
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