E2E: Add performance monitoring E2E test (#109417)

* initial workflow

* add bench reporter

* add pr trigger

* update workflow

* actually add the test

* debug

.....

* more debug

* this it???

* Debugging GHA workflow

https

newline

tree

cache node modules

try bench again

fix path

* Add RequestsRecorder and tweak GHA workflow

* More debugging GHA workflow

cache

cache key

try renaming path

specify env var correctly

* Run tests on both envs, wait for requests to finish

fix status

cat stats

cat stats

* prefix metric names

* cleanup

* cleanup gha

* codeowners

* make gen-jsonnet

* quote things

* Add host_type label for categorising the various hosts

* rename pw_boot_time_seconds to pw_test_run_time_seconds

* change prefix

* codeowners, gha name

* remove node-modules caching

* fix codeowners

scripts/grafana-server/custom.ini

@@ -18,6 +18,9 @@ queryService=true
 [environment]
 stack_id = 12345
 
+[panels]
+enable_alpha = true
+
 [plugins]
 allow_loading_unsigned_plugins=grafana-extensionstest-app,grafana-extensionexample1-app,grafana-extensionexample2-app,grafana-extensionexample3-app,grafana-e2etest-datasource