php84Extensions.pdo_odbc: add unixODBC buildInput

Since this commit, the `buildInputs` is required now:
6635948b7a

(cherry picked from commit 5073ae476cb9c95234075ce7709a78029437ba81)

pkgs/top-level/php-packages.nix

@@ -548,6 +548,7 @@ in {
         {
           name = "pdo_odbc";
           internalDeps = [ php.extensions.pdo ];
+          buildInputs = [ unixODBC ];
           configureFlags = [ "--with-pdo-odbc=unixODBC,${unixODBC}" ];
           doCheck = false;
         }