Are there any records of a Force-sensitive individual being born from non-Force-sensitive parents? Do we have any information on whether Force-sensitivity is a genetic (or genetic-like) trait? I am looking primarily for canon sources.
As far as I know there was a lot of such people that were born from not sensitive parents. Since the Jedi Order prohibited any form of attachment (although there were some marriages along its history like
Revan and Bastila(Legends, but Revan could possibly be canon as I heard he was mentioned in one of Canon media) or Anakin and Padme(Canon)
having kids was probably prohibited as well. As far as we know most of the powerful Force-sensitive beings were tracked and trained to be Jedi, so most of the parents of future Jedi weren't Jedi themselves.
But this doesn't necessarily mean that they weren't Force-sensitive. Their Force sensitivity could be too weak, they were found too late to begin training, or were never found. As far as I know, Force-sensitivity is not a binary thing meaning you are or you aren't Force-sensitive. It was more fluid, depending on amount of midi-chlorians you have in your blood.
So to answer your question: There is a history of many Force users that were not born from other known Force users, specifically from Jedi. One example I know about from Star Wars Rebels:
We know his parents were not Jedi and there is no evidence that they were Force-sensitive. There is no evidence telling they weren't neither, although info about them in show suggests they were just a normal, regular couple, so I find it unlikely for them to be Force-sensitive.
In my opinion it is not a genetic trait and a Force-sensitive child can be born from parents who are not Force-sensitive. It may however be that Force-sensitivity has to build up through generations (in the form of midi-chlorians, which amount may be a genetic trait).
A nice question and answer about Force using skills and if it's inheritable is here: Prior to the introduction of midichlorians, was Force adeptness hereditary?
In the Phantom Menace Qui-Gon tells Shmi
"He is unlucky if he had been born in the central worlds his ability would have been identified earlier"
That suggests to me that Force users are not only born of Force Sensitive parents. If they where then it would be easy to identify them from there lineage. Instead force users are found by members of the Jedi Order seeking them out.
Spoiler regarding the last Jedi below:
The fact also that Rey's parents are not force sensitive as well shows that it is possibly the Force that chooses who it allows to use it.