Fix unknown_member macro boolean type inference with explicit casts

[jonhopper-dataengineers]

Summary

• Added explicit ::boolean casts to is_current, is_deleted, and generic boolean columns in the unknown_member macro to fix Snowflake type inference issues when generating unknown member rows.
• Bumped version from 1.0.3 to 1.0.4 and updated CHANGELOG.

Test plan

• Run dbt compile to verify the macro generates valid SQL with the ::boolean casts
• Run integration tests against a model using unknown_member with boolean columns
• Verify the generated unknown member row has correct BOOLEAN column types in Snowflake

.... Generated with Cortex Code

Summary by Sourcery

Ensure unknown_member macro correctly handles boolean columns in Snowflake and bump package version.

Bug Fixes:

• Correct unknown_member macro boolean column defaults by adding explicit BOOLEAN casts to avoid Snowflake type inference issues.

Enhancements:

• Update project version metadata from 1.0.3 to 1.0.4 to reflect the boolean casting fix.

Tests:

• Add integration package lock configuration for testing the local dbt_dataengineers_utils package.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds explicit ::boolean casts in the unknown_member macro’s boolean outputs to fix Snowflake type inference for generated unknown member rows, bumps the package version to 1.0.4, and adds an integration test package-lock for local package resolution along with documenting the fix in the changelog.

File-Level Changes

Change	Details	Files
Ensure unknown_member macro emits explicit BOOLEAN-typed values for Snowflake.	Change is_current unknown member column from an untyped true literal to true::boolean. Change is_deleted unknown member column from an untyped false literal to false::boolean. Change generic BOOLEAN column default from true to true::boolean when generating the unknown member row.	macros/modelling/unknown_member.sql
Versioning and metadata updates to reflect the bugfix release and stabilize integration tests.	Add v1.0.4 entry to the changelog describing the boolean cast fix and version bump. Bump dbt package version from 1.0.3 to 1.0.4 in dbt_project.yml. Add integration_tests/package-lock.yml to pin the local package and checksum for integration testing.	CHANGELOG.md dbt_project.yml integration_tests/package-lock.yml

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