Chapter 4 on general topology in Folland's real analysis book [1] should suffice.
As noted in the comments, the setting of Polish spaces is more relevant for Modern probability. The lovely classic [2] is wonderful to sample the interactions of measure and topology, you can just read the first ten chapters (pages 1-44).
[1] Folland, Gerald B. Real analysis: modern techniques and their applications. Vol. 40. John Wiley & Sons, 1999.
https://www.amazon.com/Real-Analysis-Modern-Techniques-Applications/dp/0471317160?asin=0471317160&revisionId=&format=4&depth=1
[2] Oxtoby, J. C. (2013). Measure and category: A survey of the analogies between topological and measure spaces (Vol. 2). Springer Science & Business Media.