Revert "ci: switch travis to github actions"

This reverts commit e3ba700.

Signed-off-by: Miroslav Bajtoš <mbajtoss@gmail.com>
Signed-off-by: SAMI BETTAYEB <sami3639@gmail.com>

Author: bajtos

.github/workflows/continuous-integration.yml

@@ -0,0 +1,18 @@
+language: node_js
+node_js:
+  - "10"
+  - "12"
+  - "13"
+  - "14"
+
+services:
+  - postgresql
+addons:
+  postgresql: "9.6"
+env:
+  global:
+    - PGUSER=postgres
+
+branches:
+  only:
+    - master