feat(shuffle)!: add Shuffle and ShuffleSlice functions (#11)

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.

.github/workflows/ci.yml

@@ -80,7 +80,6 @@ jobs:
     strategy:
       matrix:
         go-version:
-          - "1.17"
           - "1.18"
           - "1.19"
           - "1.20"
@@ -88,11 +87,13 @@ jobs:
           - "1.22"
           - "1.23"
           - "1.24"
+          - "stable"
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go-version }}
+          check-latest: true
       - name: Run tests
         run: make test
         env: