Bump dbt and plugins to 1.9.x, bump Meltano to 3.6, merge venvs #147

Job	Run time
read-env / reusable-read-env	5s
build-images / build-and-push-custom-dbt-image / build-dbt	51s
build-images / build-and-push-custom-meltano-image / build-meltano	1m 40s
build-images / build-and-push-custom-gooddata-image / build-gooddata	34s
elta-labs-motherduck / extract-load / extract-load (github)	37s
elta / extract-load / extract-load (github)	33s
elta-cloud / extract-load / extract-load (github)	31s
elta-labs-motherduck / extract-load / extract-load (faa)	36s
elta-labs-motherduck / extract-load / extract-load (ecommerce_demo)	36s
elta / extract-load / extract-load (faa)	30s
elta-cloud / extract-load / extract-load (faa)	31s
elta-labs-motherduck / extract-load / extract-load (data_science)	38s
elta / extract-load / extract-load (ecommerce_demo)	30s
elta-cloud / extract-load / extract-load (ecommerce_demo)	33s
elta-labs-motherduck / extract-load / extract-load (jira)	34s
elta / extract-load / extract-load (data_science)	34s
elta-cloud / extract-load / extract-load (data_science)	33s
elta / extract-load / extract-load (jira)	30s
elta-cloud / extract-load / extract-load (jira)	31s
elta-cloud / transform	0s
elta-cloud / analytics	0s
elta / transform	0s
elta / analytics	0s
elta-labs-motherduck / transform	0s
elta-labs-motherduck / analytics	0s
	11m 27s

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