Changes and fixes before the release (docs/small tweaks) (#750)

- update README.md with new docker instructions
- update docs/configuration.md
- update .github/workflows to have pinned action versions
- gofmt events package
- fix small bugs in CI scripts
- reduce config options for internal/perf/monitor and config. A ring buffer is used to keep 1hr of entries at max 5s granularity. For long term stats use prometheus monitoring on /metrics

Fixes #744

proxy/config/config.go

@@ -223,11 +223,8 @@ func LoadConfigFromReader(r io.Reader) (Config, error) {
 	}
 
 	// Apply defaults for performance config when section is missing
-	if !config.Performance.Enable && config.Performance.Every == 0 && config.Performance.MaxAge == 0 && config.Performance.GC == 0 {
-		config.Performance.Enable = true
-		config.Performance.Every = 15 * time.Second
-		config.Performance.MaxAge = 1 * time.Hour
-		config.Performance.GC = 5 * time.Minute
+	if config.Performance.Every == 0 {
+		config.Performance.Every = 5 * time.Second
 	}
 	if err = config.Performance.Validate(); err != nil {
 		return Config{}, fmt.Errorf("performance: %w", err)