Skip docker tagging tests also in GH Actions

Change-Id: I7ff8186b69da5c72fda450cad1206b2c7cd25d70
diff --git a/app/src/test/kotlin/de/ids_mannheim/korapxmltools/FoundryOverrideTest.kt b/app/src/test/kotlin/de/ids_mannheim/korapxmltools/FoundryOverrideTest.kt
index e4ea415..04cd632 100644
--- a/app/src/test/kotlin/de/ids_mannheim/korapxmltools/FoundryOverrideTest.kt
+++ b/app/src/test/kotlin/de/ids_mannheim/korapxmltools/FoundryOverrideTest.kt
@@ -51,7 +51,9 @@
     private fun skipIfDockerUnavailable() {
         val isRunningInDocker = File("/.dockerenv").exists() ||
             (File("/proc/1/cgroup").exists() && File("/proc/1/cgroup").readText().contains("docker"))
+        val isGitHubActions = System.getenv("GITHUB_ACTIONS") == "true"
         org.junit.Assume.assumeFalse("Skipping Docker test inside Docker container", isRunningInDocker)
+        org.junit.Assume.assumeFalse("Skipping Docker test in GitHub Actions CI", isGitHubActions)
         org.junit.Assume.assumeTrue("Docker is not available", isDockerAvailable())
     }