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This diff is basically impossible to view, but the TLDR is that I moved the following utility methods out of the
PgHaMigrations::AllowedVersions::ALLOWED_VERSIONS
loop:safely_acquire_lock_for_table
adjust_lock_timeout
adjust_statement_timeout
ensure_small_table
These methods do not exercise any of the backwards compatibility features of migrations, so we shouldn't need to run the tests for each migration version. The
safely_acquire_lock_for_table
tests are very slow, so this should hopefully speed things up significantly.