Add equivalent to `Shuffle` function from `math/rand` and `math/rand/v2`
packages, but based on randomness from `crypto/rand` package. This
allows cryptographically secure shuffling of data.
Also add `ShuffleSlice` function that shuffles a slice of any type.
BREAKING CHANGE: Minimum required Go version is now 1.18 due the `ShuffleSlice` using generics.
Upgrade to Go 1.17 and golangci-lint to 1.64, and fix the linting issues
that were found.
Also upgrade CI workflow actions to latest versions, and setup a test
matrix for relevant Go versions.
BREAKING CHANGE: Minimum Go version changed from 1.15 to 1.17.
randsmust is specifically intended as an alternative to rands for use in
tests. All functions return a single value, and panic in the event of an
error. This makes them easy to use when building structs in test cases
that need random data.
Internally the package simply calls the equivalent function from the
rands package, and panics if a error is returned.
