Make "bundle open" print the url; add acceptance test (#3168)

## Why
Need a test for direct deployment implementation.

Author: denik

NEXT_CHANGELOG.md

@@ -14,5 +14,6 @@
 ### Bundles
 * Added support for pipeline environment field ([#3153](https://github.com/databricks/cli/pull/3153))
 * "bundle summary" now prints diagnostic warnings to stderr ([#3123](https://github.com/databricks/cli/pull/3123))
+* "bundle open" will print the URL before opening the browser ([#3168](https://github.com/databricks/cli/pull/3168))
 
 ### API Changes

acceptance/bundle/open/databricks.yml

@@ -0,0 +1,17 @@
+bundle:
+  name: caterpillar
+
+resources:
+  jobs:
+    foo:
+      name: foo
+      tasks:
+        - task_key: task
+          spark_python_task:
+            python_file: ./foo.py
+          environment_key: default
+
+      environments:
+        - environment_key: default
+          spec:
+            client: "2"

acceptance/bundle/open/foo.py

@@ -0,0 +1 @@
+print(1)

acceptance/bundle/open/open

@@ -0,0 +1,2 @@
+#!/bin/bash
+echo "I AM BROWSER"

acceptance/bundle/open/output.txt

@@ -0,0 +1,26 @@
+
+=== no run key specified
+>>> [CLI] bundle open
+Error: expected a KEY of the resource to open
+
+Exit code: 1
+
+=== not deployed yet
+>>> [CLI] bundle open foo
+Error: resource does not have a URL associated with it (has it been deployed?)
+
+Exit code: 1
+
+>>> [CLI] bundle deploy
+Uploading bundle files to /Workspace/Users/[USERNAME]/.bundle/caterpillar/default/files...
+Deploying resources...
+Updating deployment state...
+Deployment complete!
+
+=== Modify PATH so that real open is not run
+=== open after deployment. This will fail to open browser and complain, that's ok, we only want the message
+>>> [CLI] bundle open foo
+Opening browser at [DATABRICKS_URL]/jobs/[NUMID]?o=[NUMID]
+Error: exec: "open": cannot run executable found relative to current directory
+
+Exit code (musterr): 1

acceptance/bundle/open/script

@@ -0,0 +1,13 @@
+title "no run key specified"
+errcode trace $CLI bundle open
+
+title "not deployed yet"
+errcode trace $CLI bundle open foo
+
+errcode trace $CLI bundle deploy
+
+title "Modify PATH so that real open is not run"
+export PATH=.:$PATH
+
+title "open after deployment. This will fail to open browser and complain, that's ok, we only want the message"
+musterr trace $CLI bundle open foo

acceptance/bundle/open/test.toml

@@ -0,0 +1,3 @@
+GOOS.windows = false
+GOOS.linux = false
+EnvMatrix.DATABRICKS_CLI_DEPLOYMENT = ["terraform"]  # "bundle open" not implemented yet

cmd/bundle/open.go

@@ -117,6 +117,7 @@ func newOpenCommand() *cobra.Command {
 			return errors.New("resource does not have a URL associated with it (has it been deployed?)")
 		}
 
+		cmdio.LogString(ctx, "Opening browser at "+url)
 		return browser.OpenURL(url)
 	}