Recipe Shortcode: Allow filtering of output_time

### Impacted plugin

Jetpack

### What

Please allow filtering of output_time in Recipe Shortcode

### How

Dear developers,

the recipe shortcode output_time currently adds proper metadata to strings that strtotime recognizes. For localized strings, the metadata will thus be invalid. Filtering the return value would allow to replace the invalid $time_str with proper one.

Example
`return apply_filters('jetpack_recipes_output_time', $formatted_time, $time_str, $time_type)`

Best regards,
Andrej

Start by locating the Jetpack Recipe Shortcode implementation and the handling of output_time. Trace how the formatted time and time string are produced, then check any nearby tests or shortcode tests to define the expected filterable behavior and localized output.

Written by the indexing model from the issue text.