[-] update github actions to use Go 1.19 for tests

.github/workflows/tests.yaml

@@ -9,15 +9,15 @@ on:
       - master
 jobs:
   testold:
-    name: "Test with Go 1.13"
+    name: "Test with Go 1.19"
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
 
-      - name: Set up Go 1.13
+      - name: Set up Go 1.19
         uses: actions/setup-go@v3
         with:
-          go-version: 1.13
+          go-version: 1.19
 
       - name: Test
         run: go test -coverprofile=coverage.txt -covermode=atomic $(go list ./... | grep -v /cmd)