Add full update+upgrade test harness (TEST_LOAD_SOURCE/TEST_SCHEMA, bin/test_existing, pg-upgrade-test/extension-update-test) - #23

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jnasbyupgrade wants to merge 1 commit into

add-update-upgrade-testing

Commits on Jul 31, 2026

Add full update+upgrade test harness (TEST_LOAD_SOURCE/TEST_SCHEMA, bin/test_existing, pg-upgrade-test/extension-update-test CI jobs)

jnasbyupgrade
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claude
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