I had an ubuntu version that I assume had an outdated pandoc. After changing to manjaro

this project has stopped working for me https://github.com/mrzool/invoice-boilerplate

with the error

pandoc details.yml -o output.pdf --template=template.tex --pdf-engine=xelatex
[WARNING] Could not deduce format from file extension .yml

and then a fail after trying to transform the yml file to pdf. Is the demos https://pandoc.org/demos.html seems that the syntax is correct (I know that before it worked) but now it seems to be broken.

My pandoc version is

pandoc 2.14.0.2
Compiled with pandoc-types 1.22, texmath 0.12.3, skylighting 0.10.5.1,
citeproc 0.4.0.1, ipynb 0.1.0.1

Is there a new way of doing this(taking metadata for a template from yml and creating a pdf)?