I'm going to say with almost absolute certainty that there isn't. There's neither any obvious semantic connection or a significant flow of words between Thai and Swahili. Tuk-tuk is apparently onomatopoeic, from the engine sound of a tuk-tuk ...
Both having a "t" sound and a "k" sound, as well as reduplication, is essentiall nothing.
I'm also pretty certain it's not related to "tick-tock".