Add each department ministry as a feed

**Is your feature request related to a problem? Please describe.**
Each ministry seems to have its own news release feed, e.g. [Defence](https://www.canada.ca/en/news/advanced-news-search/news-results.html?_=1706187953394&typ=statements&dprtmnt=departmentnationaldefense&start=&end=), [Immigration](https://www.canada.ca/en/news/advanced-news-search/news-results.html?typ=newsreleases&dprtmnt=departmentofcitizenshipandimmigration&start=2015-01-01&end=)

We'd like to digest these feeds. For relevant entries, rather than having the AI try to match it to any promise, we should only match it to promises of that ministry. That should be more high signal.

**Describe the solution you'd like**
* See if there exists a high-signal feed for each ministry
* Ingest that
* Only attempt to match to relevant ministry

Empieza localizando los puntos de entrada existentes para la ingestión de news feeds y la coincidencia de promesas en la Ruby API. Identifica feeds con una alta señal para cada ministerio y determina cómo se representan los metadatos de los ministerios. Se considera terminado cuando se ingieren los feeds relevantes de los ministerios y las entradas solo se comparan con promesas del mismo ministerio.

Escrito por el modelo de indexación a partir del texto del issue.