ci: test Golang 1.20 (#1925)

Author: umarcor

.github/workflows/test.yml

@@ -43,7 +43,7 @@ jobs:
 
       - uses: actions/setup-go@v3
         with:
-          go-version: '^1.19'
+          go-version: '^1.20'
           check-latest: true
           cache: true
 
@@ -66,6 +66,7 @@ jobs:
         - 17
         - 18
         - 19
+        - 20
     name: '${{ matrix.platform }} | 1.${{ matrix.go }}.x'
     runs-on: ${{ matrix.platform }}-latest
     steps: