test: Test with singer-sdk @ main #1107

Job	Run time
Meltano integration test / COPY	1m 0s
Python 3.13 / Postgres 17 / COPY	1m 34s
Meltano integration test / INSERT	59s
Python 3.12 / Postgres 17 / COPY	1m 33s
Python 3.11 / Postgres 17 / COPY	1m 18s
Python 3.10 / Postgres 17 / COPY	1m 21s
Python 3.9 / Postgres 17 / COPY	1m 28s
Python 3.13 / Postgres 13 / COPY	1m 36s
Python 3.13 / Postgres 14 / COPY	1m 34s
Python 3.13 / Postgres 15 / COPY	1m 34s
Python 3.13 / Postgres 16 / COPY	1m 41s
Python 3.13 / Postgres 17 / INSERT	1m 35s
	17m 13s

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