Add support to use meta field of a resource

[pratik60]

From: https://docs.getdbt.com/reference/resource-configs/meta

The meta field can store custom information about a model which would be useful metadata to add to query tags to filter data. My usecase is to filter query by team owner and associate cost accordingly.

I verified this with "meta" being empty for a model, which would generate an empty {}. If meta is populated, it would use that in the query tag.

[NiallRees]

Looks great - confirmed to be working as expected:

create or replace transient table DBT_CI.dbt_snowflake_query_tags_test_commit_ae358756718460aa1452f1833e22a17baa6836a7.materialized_table
         as
        (

select 1 as a
        )
/* {"app": "dbt", "dbt_snowflake_query_tags_version": "2.0.1", "dbt_version": "1.5.0", "project_name": "dbt_snowflake_query_tags_tests", "target_name": "snowflake", "target_database": "DBT_CI", "target_schema": "dbt_snowflake_query_tags_test_commit_ae358756718460aa1452f1833e22a17baa6836a7", "invocation_id": "a935a98f-cd45-45f7-8a7a-444661eb3e38", "node_name": "materialized_table", "node_alias": "materialized_table", "node_package_name": "dbt_snowflake_query_tags_tests", "node_original_file_path": "models/materialized_table.sql", "node_database": "DBT_CI", "node_schema": "dbt_snowflake_query_tags_test_commit_ae358756718460aa1452f1833e22a17baa6836a7", "node_id": "model.dbt_snowflake_query_tags_tests.materialized_table", "node_resource_type": "model", "node_meta": {"model_maturity": "in dev", "owner": "@alice"}, "node_tags": ["a"], "node_refs": [], "materialized": "table"} */;

insert into DBT_CI.dbt_snowflake_query_tags_test_commit_ae358756718460aa1452f1833e22a17baa6836a7.materialized_incremental ("A")
        (
            select "A"
            from DBT_CI.dbt_snowflake_query_tags_test_commit_ae358756718460aa1452f1833e22a17baa6836a7.materialized_incremental__dbt_tmp
        )
/* {"app": "dbt", "dbt_snowflake_query_tags_version": "2.0.1", "dbt_version": "1.5.0", "project_name": "dbt_snowflake_query_tags_tests", "target_name": "snowflake", "target_database": "DBT_CI", "target_schema": "dbt_snowflake_query_tags_test_commit_ae358756718460aa1452f1833e22a17baa6836a7", "invocation_id": "a935a98f-cd45-45f7-8a7a-444661eb3e38", "node_name": "materialized_incremental", "node_alias": "materialized_incremental", "node_package_name": "dbt_snowflake_query_tags_tests", "node_original_file_path": "models/materialized_incremental.sql", "node_database": "DBT_CI", "node_schema": "dbt_snowflake_query_tags_test_commit_ae358756718460aa1452f1833e22a17baa6836a7", "node_id": "model.dbt_snowflake_query_tags_tests.materialized_incremental", "node_resource_type": "model", "node_meta": {}, "node_tags": ["a", "b", "c"], "node_refs": ["materialized_table", "materialized_view"], "materialized": "incremental"} */;