CHORE: Unskip some schema tests

[mShan0]

These tests are now passing:

    'schema.tests.SchemaTests.test_alter_implicit_id_to_explicit',
    'schema.tests.SchemaTests.test_alter_int_pk_to_bigautofield_pk',
    'schema.tests.SchemaTests.test_alter_pk_with_self_referential_field',
    'schema.tests.SchemaTests.test_unique_together_with_fk',
    'schema.tests.SchemaTests.test_unique_together_with_fk_with_existing_index',

[Copilot]

Pull request overview

This PR updates the Django test runner configuration for mssql-django by unskipping (removing from EXCLUDED_TESTS) several upstream Django schema tests that are now expected to pass on SQL Server.

Changes:

• Removed several schema.tests.SchemaTests.* entries from testapp/settings.py’s EXCLUDED_TESTS list so they run again.
• Made a whitespace-only change in test.sh (introduced a space-only line).

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated 2 comments.

File	Description
testapp/settings.py	Unskips selected Django schema tests by removing them from EXCLUDED_TESTS.
test.sh	Whitespace-only change near the set -e header.

[bewithgaurav]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).