Add brand ČSOB Poisťovňa

[Oivo35]

Add insurance company ČSOB Poisťovňa operated in Slovakia:

    {
      "displayName": "ČSOB Poisťovňa",
      "locationSet": {"include": ["sk"]},
      "tags": {
        "brand": "ČSOB Poisťovňa",
        "brand:wikidata": "Q96129090",
        "name": "ČSOB Poisťovňa",
        "office": "insurance"
      }
    },

[Snowysauce]

I tried researching how many agencies exist for this brand (to determine notability), but was unable to find a locator page or another reference with an agency count.

[Oivo35]

Here are the branches of the insurance company of the ČSOB financial group.
https://www.csob.sk/web/eng/branches-atms#./

[Snowysauce]

Thanks for the link. I've added the brand to the index.