Use go 1.19

.forgejo/workflows/test.yml

@@ -13,11 +13,11 @@ jobs:
     steps:
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.20
+          go-version: 1.19
       - uses: actions/checkout@v3
       - name: vet checks
         run: make vet
       - name: build
         run: make build
       - name: test
-        run: make test
+        run: make test

go.mod

@@ -1,6 +1,6 @@
 module codeberg.org/forgejo/runner
 
-go 1.20
+go 1.19
 
 require (
 	code.gitea.io/actions-proto-go v0.2.0