I'm encountering spacing violations during the DRC check. Do I need to manually re-route to get rid of these violations?

How many violations is TritonRoute reporting?

36 violations reported at the end of the 7th optimization iteration.

Try setting ::env(ROUTING_STRATEGY) to 14 in the configurations of this design. This will use TR14 for detailed routing, which is more powerful and more 0-DRC capable. If it doesn't reduce the violations to 0, check this out https://github.com/efabless/openlane/wiki#how-to-get-to-0-drc-violations

@Amr Gouhar Thanks. I'll do the suggested changes and test the flow again.