update pelletier/go-toml to drop testify
This minor update mainly drops a test dependency on stretchr/testify,
which in turns drops two more transitive dependencies too.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Change-Id: I30a968e5fb5996636791d473318602ef9f7a6765
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1212988
Unity-Result: CUE porcuepine <cue.porcuepine@gmail.com>
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>
Reviewed-by: Roger Peppe <rogpeppe@gmail.com>