ext/pdo_firebird: Use new zend_string_starts_with_*_ci() API

[Girgias]

No description provided.

[nielsdos]

I think this looks right, but I think this is actually a bugfix rather than a refactor.
Let's say param->name is "abc", and var->aliasname = "abcd". Then the old code will call strncasecmp("abc", "abcd", 3); which returns 0, so then the branch will be taken even though the names don't match?

[Girgias]

TBH I'm not exactly sure what it is trying to do, it may as well make more sense to use: zend_string_equals_cstr()

[nielsdos]

TBH I'm not exactly sure what it is trying to do

Binding a named parameter in a prepared statement

Idk whether Firebird considers named parameters case sensitive or not though

[Girgias]

Windows failure is legit, need to investigate.