Update dependencies (#79)

* Update dependencies

gvisor was not updated to the latest version, because it did not
compile.

* actions: Update go version to 1.20

* docker: Update go version to 1.20

.github/workflows/golangci-lint.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.19'
+          go-version: '1.20'
       - uses: actions/checkout@v3
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3