Widen range of cmake_minimum_required

[carlopi]

This should be mostly a nop, but allow postgres_scanner to be explicitly compatible with newer cmake versions.

[carlopi]

This looks ready to me, unsure on the failure, probably duckdb side?

Query unexpectedly failed! (/home/runner/work/duckdb-postgres/duckdb-postgres/test/sql/storage/attach_copy_from_database.test:55)!
================================================================================
COPY FROM DATABASE s1 TO new_db;
================================================================================
INTERNAL Error: Attempted to access index 0 within vector of size 0

Stack Trace:

/home/runner/work/duckdb-postgres/duckdb-postgres/build/release/src/libduckdb.so(duckdb::Exception::ToJSON(duckdb::ExceptionType, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)+0x68) [0x7fd34c7b23b8]
/home/runner/work/duckdb-postgres/duckdb-postgres/build/release/src/libduckdb.so(duckdb::Exception::Exception(duckdb::ExceptionType, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)+0x28) [0x7fd34c7b2428]
/home/runner/work/duckdb-postgres/duckdb-postgres/build/release/src/libduckdb.so(duckdb::InternalException::InternalException(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)+0x15) [0x7fd34c7b5585]
./build/release//test/unittest(duckdb::InternalException::InternalException<unsigned long, unsigned long>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, unsigned long)+0x177) [0x5572d3311567]
/home/runner/work/duckdb-postgres/duckdb-postgres/build/release/src/libduckdb.so(+0x8ec4db) [0x7fd34bcec4db]
/home/runner/work/duckdb-postgres/duckdb-postgres/build/release/src/libduckdb.so(duckdb::BoundIndex::BoundIndex(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, duckdb::IndexConstraintType, duckdb::vector<unsigned long, true> const&, duckdb::TableIOManager&, duckdb::vector<duckdb::unique_ptr<duckdb::Expression, std::default_delete<duckdb::Expression>, true>, true> const&, duckdb::AttachedDatabase&)+0x222) [0x7fd34cac1b42]

This is against duckdb v1.2.1, unsure if solved already in v1.2-histrionicus or needs to be tracked.

[Mytherin]

Thanks!