fix: add retry configuration for HTTP requests in provider

stackit/provider.go

@@ -45,6 +45,17 @@ var (
 	_ provider.Provider = &Provider{}
 )
 
+const (
+	// maxRetries is the maximum number of retries for a failed HTTP request.
+	maxRetries = 3
+	// initialDelay is the initial delay before the first retry attempt.
+	initialDelay = 2 * time.Second
+	// maxDelay is the maximum delay between retry attempts.
+	maxDelay = 90 * time.Second
+	// perTryTimeout is the timeout for each individual HTTP request attempt.
+	perTryTimeout = 30 * time.Second
+)
+
 // Provider is the provider implementation.
 type Provider struct {
 	version string