Revert "Revert "Rename argus to observability (#510)" (#515)" (#516)

This reverts commit ddcbc77685.

examples/resources/stackit_observability_scrapeconfig/resource.tf

@@ -0,0 +1,17 @@
+resource "stackit_observability_scrapeconfig" "example" {
+  project_id   = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+  instance_id  = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+  name         = "example-job"
+  metrics_path = "/my-metrics"
+  saml2 = {
+    enable_url_parameters = true
+  }
+  targets = [
+    {
+      urls = ["url1", "urls2"]
+      labels = {
+        "url1" = "dev"
+      }
+    }
+  ]
+}