ci: add Go 1.23 to test matrix

Signed-off-by: Kir Kolyshkin <[email protected]>

Author: kolyshkin

.github/workflows/validate.yml

@@ -72,7 +72,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: [1.21.x, 1.22.x]
+        go-version: [1.21.x, 1.22.x, 1.23.x]
         race: ["-race", ""]
     runs-on: ubuntu-22.04
     steps: