Remove go 1.21 from unit tests and add 1.23

Author: ciarams87

.github/workflows/ci.yml

@@ -35,7 +35,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: ["1.21", "1.22", stable]
+        go-version: ["1.22", "1.23", stable]
     steps:
       - name: Checkout Repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2