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

Inizia individuando i punti di ingresso esistenti per l’acquisizione dei news feed e l’abbinamento delle promesse nella Ruby API. Identifica i feed ad alto segnale per ogni ministero e determina come sono rappresentati i metadati dei ministeri. Il lavoro è completato quando i feed pertinenti dei ministeri vengono acquisiti e le voci vengono abbinate solo alle promesse dello stesso ministero.

Scritto dal modello di indicizzazione a partire dal testo della issue.