These overlay packages will be removed once the extensions are updated
to use the new `buildPgrxExtension` function.

…ibv8`

The previously used version was failing to build:

/build/source/src/common/get_check_data.c: In function 'pgr_SPI_getText':
/build/source/src/common/get_check_data.c:307:28: error: passing argument 1 of 'DatumGetCString' makes integer from pointer without a cast [-Wint-conversion]
  307 |     return DatumGetCString(SPI_getvalue(*tuple, *tupdesc, info.colNumber));
      |                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                            |
      |                            char *
In file included from /build/source/include/c_common/postgres_connection.h:29,
                 from /build/source/src/common/get_check_data.c:27:
/nix/store/nn6vpjqlsxxmynwcrsib9agb3hpr5cqj-postgresql-17.4/include/server/postgres.h:335:23: note: expected 'Datum' {aka 'long unsigned int'} but argument is of type 'char *'
  335 | DatumGetCString(Datum X)
      |                 ~~~~~~^
make[2]: *** [src/common/CMakeFiles/common.dir/build.make:149: src/common/CMakeFiles/common.dir/get_check_data.c.o] Error 1

This was discussed upstream here:
https://postgr.es/m/0a997455-5aba-4cf2-a354-d26d8bcbfae6%40technowledgy.de

Also applied by nixpkgs here: NixOS/nixpkgs#342026

We cannot use nodejs.libv8 as it is too new for plv8 3.1.
We will be able to use it with plv8 3.2.

Backport upstream commit to remove the deprecated darwin framework: NixOS/nixpkgs#398707

dbmate 2.27 is now using a varchar for the version column in the
schema_migrations table.

See amacneil/dbmate#641

…ugInfo

See NixOS/nixpkgs#394674