libgetdata: do not build perl extension by default

Closes #20176.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
newlisp 10.5.0

Closes #20180.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
spin 6.2.5

Closes #20179.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>