Plugins: Angular detector: Remote patterns fetching (#69843)

* Plugins: Angular detector: Remote patterns fetching

* Renamed PatternType to GCOMPatternType

* Renamed files

* Renamed more files

* Moved files again

* Add type checks, unexport GCOM structs

* Cache failures, update log messages, fix GCOM URL

* Fail silently for unknown pattern types, update docstrings

* Fix tests

* Rename gcomPattern.Value to gcomPattern.Pattern

* Refactoring

* Add FlagPluginsRemoteAngularDetectionPatterns feature flag

* Fix tests

* Re-generate feature flags

* Add TestProvideInspector, renamed TestDefaultStaticDetectorsInspector

* Add TestProvideInspector

* Add TestContainsBytesDetector and TestRegexDetector

* Renamed getter to provider

* More tests

* TestStaticDetectorsProvider, TestSequenceDetectorsProvider

* GCOM tests

* Lint

* Made detector.detect unexported, updated docstrings

* Allow changing grafana.com URL

* Fix API path, add more logs

* Update tryUpdateRemoteDetectors docstring

* Use angulardetector http client

* Return false, nil if module.js does not exist

* Chore: Split angualrdetector into angularinspector and angulardetector packages

Moved files around, changed references and fixed tests:
- Split the old angulardetector package into angular/angulardetector and angular/angularinspector
- angulardetector provides the detection structs/interfaces (Detector, DetectorsProvider...)
- angularinspector provides the actual angular detection service used directly in pluginsintegration
- Exported most of the stuff that was private and now put into angulardetector, as it is not required by angularinspector

* Renamed detector.go -> angulardetector.go and inspector.go -> angularinspector.go

Forgot to rename those two files to match the package's names

* Renamed angularinspector.ProvideInspector to angularinspector.ProvideService

* Renamed "harcoded" to "static" and "remote" to "dynamic"

from PR review, matches the same naming schema used for signing keys fetching

* Fix merge conflict on updated angular patterns

* Removed GCOM cache

* Renamed Detect to DetectAngular and Detector to AngularDetector

* Fix call to NewGCOMDetectorsProvider in newDynamicInspector

* Removed unused test function newError500GCOMScenario

* Added angularinspector service definition in pluginsintegration

* Moved dynamic inspector into pluginsintegration

* Move gcom angulardetectorsprovider into pluginsintegration

* Log errUnknownPatternType at debug level

* re-generate feature flags

* fix error log

pkg/plugins/config/config.go

@@ -45,7 +45,8 @@ type Cfg struct {
 
 func NewCfg(devMode bool, pluginsPath string, pluginSettings setting.PluginSettings, pluginsAllowUnsigned []string,
 	awsAllowedAuthProviders []string, awsAssumeRoleEnabled bool, azure *azsettings.AzureSettings, secureSocksDSProxy setting.SecureSocksDSProxySettings,
-	grafanaVersion string, logDatasourceRequests bool, pluginsCDNURLTemplate string, tracing Tracing, features plugins.FeatureToggles, angularSupportEnabled bool) *Cfg {
+	grafanaVersion string, logDatasourceRequests bool, pluginsCDNURLTemplate string, tracing Tracing, features plugins.FeatureToggles, angularSupportEnabled bool,
+	grafanaComURL string) *Cfg {
 	return &Cfg{
 		log:                     log.New("plugin.cfg"),
 		PluginsPath:             pluginsPath,
@@ -60,7 +61,7 @@ func NewCfg(devMode bool, pluginsPath string, pluginSettings setting.PluginSetti
 		LogDatasourceRequests:   logDatasourceRequests,
 		PluginsCDNURLTemplate:   pluginsCDNURLTemplate,
 		Tracing:                 tracing,
-		GrafanaComURL:           "https://grafana.com",
+		GrafanaComURL:           grafanaComURL,
 		Features:                features,
 		AngularSupportEnabled:   angularSupportEnabled,
 	}