fix: prioritize @EACH lambda params over column name conflicts #3561

Job	Run time
test-dbt-versions (1.7)	1m 49s
test-dbt-versions (1.8)	1m 40s
changes	7s
test-vscode	1m 1s
test-dbt-versions (1.3)	1m 45s
test-dbt-versions (1.6)	1m 37s
test-dbt-versions (1.4)	1m 31s
test-dbt-versions (1.9)	1m 43s
test-dbt-versions (1.5)	1m 29s
test-dbt-versions (1.10)	1m 41s
test-vscode-e2e	0s
migration-test	1m 22s
cicd-tests-windows	10m 46s
doc-tests	30s
style-and-cicd-tests (3.12)	21m 59s
style-and-cicd-tests (3.11)	22m 20s
style-and-cicd-tests (3.9)	23m 29s
style-and-cicd-tests (3.13)	21m 45s
style-and-cicd-tests (3.10)	23m 1s
engine-tests-docker (mysql)	1m 35s
engine-tests-docker (duckdb)	1m 35s
engine-tests-docker (spark)	5m 20s
engine-tests-docker (mssql)	1m 53s
engine-tests-docker (risingwave)	2m 38s
engine-tests-docker (clickhouse)	2m 50s
engine-tests-docker (postgres)	2m 19s
engine-tests-docker (trino)	8m 32s
ui-style	0s
ui-test	0s
engine-tests-cloud	0s
	2h 46m 17s

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