plugins/logs: Fix broken retry logic

We were incorrectly resetting the retry counter after
every error condition instead of using the incremented
value. As a result, retry delay would always be 0s.
This meant that if OPA encountered an error while
uploading decision logs it would immediately retry
instead of doing an exponential backoff.

Fixes: #4486

Signed-off-by: Ashutosh Narkar <anarkar4387@gmail.com>

plugins/logs/plugin.go

@@ -661,9 +661,10 @@ func (p *Plugin) loop() {
 
 	ctx, cancel := context.WithCancel(context.Background())
 
+	var retry int
+
 	for {
 
-		var retry int
 		var waitC chan struct{}
 
 		if *p.config.Reporting.Trigger == plugins.TriggerPeriodic && p.config.Service != "" {