fix(alerting): replace HTML entities with emojis in teams-workflows provider to prevent rendering issues (#941)

* replace html entities with emojis to prevent rendering issues

* update teamsworklfows tests as well

---------

Co-authored-by: Sascha Voth <voth@jacob.de>
Co-authored-by: TwiN <twin@linux.com>

alerting/provider/teamsworkflows/teamsworkflows.go

@@ -147,7 +147,7 @@ func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoi
 	}
 
 	// Configure default title if it's not provided
-	title := "⛑ Gatus"
+	title := "⛑️ Gatus"
 	if cfg.Title != "" {
 		title = cfg.Title
 	}
@@ -157,9 +157,9 @@ func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoi
 	for _, conditionResult := range result.ConditionResults {
 		var key string
 		if conditionResult.Success {
-			key = "✅"
+			key = "✅"
 		} else {
-			key = "❌"
+			key = "❌"
 		}
 		facts = append(facts, Fact{
 			Title: key,