ci: enable tests with go 1.19.x

The verify / lint CI workflow running golangci-lint currently fails
with:

	phaul/api.go:30: File is not `gofmt`-ed with `-s` (gofmt) //Methods:
	phaul/server.go:37: File is not `gofmt`-ed with `-s` (gofmt) //

The problem occurs because, for some reason, golangci-lint is using
gofmt from go 1.19. In a previous patch the code has been formatted with
go 1.19. This patch enables the CI tests to run with go 1.19.X.

Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>

.github/workflows/main.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: [1.17.x, 1.18.x]
+        go-version: [1.17.x, 1.18.x, 1.19.x]
         # criu is pre-installed in the Ubuntu 20.04 GitHub Action virtual
         # environment as a dependency for Podman
         criu_branch: ["", criu-dev]