update test matrix, drop 1.18 and 1.19, adds 1.23

Signed-off-by: Pedro Tanaka <[email protected]>

Author: pedro-stanaka

.github/workflows/go.yml

@@ -57,10 +57,10 @@ jobs:
     strategy:
       matrix:
         go-version:
-        - 1.18.x # EOL: 01 Feb 2023
-        - 1.19.x # EOL: 08 Aug 2023
-        - 1.20.x
-        - 1.21.x
+        - 1.20.x # EOL: 06 Feb 2024
+        - 1.21.x # EOL: 13 Aug 2024
+        - 1.22.x
+        - 1.23.x
 
     steps:
     - name: Checkout