resource/cloudflare_tunnel_config: fix duration handling

Due to marshal/unmarshal support lacking in Go 1[1], we were previously
sending nanosecond values to the API instead of the required seconds.
This would have resulted in higher than usual timeout durations (10
seconds would have been sent as 1000000000 seconds since it duration
unmarshals to nanoseconds).

Updates all the instances of time duration handling in
`cloudflare_tunnel_config` resource to use the newly introduced
`TunnelDuration` to ensure we correctly setting the units.

[1]: golang/go#10275

Author: jacobbednarz

internal/sdkv2provider/resource_cloudflare_tunnel_config.go

@@ -36,15 +36,15 @@ func resourceCloudflareTunnelConfig() *schema.Resource {
 func buildTunnelOriginRequest(originRequest map[string]interface{}) (originConfig cloudflare.OriginRequestConfig) {
 	if v, ok := originRequest["connect_timeout"]; ok {
 		timeout, _ := time.ParseDuration(v.(string))
-		originConfig.ConnectTimeout = &timeout
+		originConfig.ConnectTimeout = &cloudflare.TunnelDuration{timeout}
 	}
 	if v, ok := originRequest["tls_timeout"]; ok {
 		timeout, _ := time.ParseDuration(v.(string))
-		originConfig.TLSTimeout = &timeout
+		originConfig.TLSTimeout = &cloudflare.TunnelDuration{timeout}
 	}
 	if v, ok := originRequest["tcp_keep_alive"]; ok {
 		timeout, _ := time.ParseDuration(v.(string))
-		originConfig.TCPKeepAlive = &timeout
+		originConfig.TCPKeepAlive = &cloudflare.TunnelDuration{timeout}
 	}
 	if v, ok := originRequest["no_happy_eyeballs"]; ok {
 		originConfig.NoHappyEyeballs = cloudflare.BoolPtr(v.(bool))
@@ -54,7 +54,7 @@ func buildTunnelOriginRequest(originRequest map[string]interface{}) (originConfi
 	}
 	if v, ok := originRequest["keep_alive_timeout"]; ok {
 		timeout, _ := time.ParseDuration(v.(string))
-		originConfig.KeepAliveTimeout = &timeout
+		originConfig.KeepAliveTimeout = &cloudflare.TunnelDuration{timeout}
 	}
 	if v, ok := originRequest["http_host_header"]; ok {
 		originConfig.HTTPHostHeader = cloudflare.StringPtr(v.(string))