Vagrantfile: bump Go version to 1.17

[mtardy]

Small fix, I was using the Vagrantfile, and recently the build of tetragon failed with Go 1.16, and make vendor was not working because the go mod tidy -compat flag was added in 1.17. I don't use snap but with a Go 1.17 version, it worked, I guess it's only mirroring what is used here https://github.com/cilium/tetragon/blob/main/.github/workflows/gotests.yml.

I guess you could directly install Go (I put 1.17.8 because you use it in the test workflow) with something like what I use in my Vagrantfiles and that looks like what you did with the rest:

GO_VERSION=1.17.8
curl -OL https://golang.org/dl/go$GO_VERSION.linux-amd64.tar.gz
rm -rf /usr/local/go && tar -C /usr/local -xzf go$GO_VERSION.linux-amd64.tar.gz
rm -f go$GO_VERSION.linux-amd64.tar.gz
echo "export PATH=$PATH:/usr/local/go/bin" >> ~/.bashrc

[kkourt]

Thanks!

[kkourt]

The change is on the Vagrantfile, which is not tested. Merging without running tests.