Found that at ziglang/zig#1252.

Closes GH-5541

 * allow the user to specify a folder where files that can be sent
   via LOAD DATA LOCAL can exist
 * add mysqli.local_infile_directory for mysqli
   (ignored if mysqli.allow_local_infile is enabled)
 * add PDO::MYSQL_ATTR_LOCAL_INFILE_DIRECTORY for pdo_mysql
   (ignored if PDO::MYSQL_ATTR_LOCAL_INFILE is enabled)
 * add related tests
 * fixes for building with libmysql 8.x
 * small improvement in existing tests
 * update php.ini-[development|production] files

Closes GH-6448.

Co-authored-by: Nikita Popov <nikic@php.net>

* PHP-8.0:
  Restore Laravel test workaround

I accidentally dropped this during a merge, making the Laravel
job fail.

* PHP-8.0:
  Fix Laravel build on community job

* PHP-7.4:
  Fix Laravel build on community job

Now requires PHP 7.4, so use php7.4 to run composer everywhere.

The extensions are build as shared to only check that they compile,
without running tests. The OCI8 extension does not properly SKIPIF
no database is available.

It should be noted that if we do want to also test these, then
(apart from running a database) it will also be necessary to configure
with LIBS="-Wl,--disable-new-dtags" in order to force the use of RPATH
instead of RUNPATH, the latter of which does not affect dlopened
libraries. Using LD_LIBRARY_PATH does not mesh well with our test
suite.

Closes GH-6604.