feat: add server-config command (#346)

* feat: added server-config command

* chore: update openapi to latest

clients/server_config/server_config.go

@@ -0,0 +1,47 @@
+package server_config
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/BurntSushi/toml"
+	"github.com/influxdata/influx-cli/v2/api"
+	"github.com/influxdata/influx-cli/v2/clients"
+	"gopkg.in/yaml.v3"
+)
+
+type Client struct {
+	clients.CLI
+	api.ConfigApi
+}
+
+type ListParams struct {
+	TOML bool
+	YAML bool
+}
+
+func (c Client) List(ctx context.Context, params *ListParams) error {
+	response, err := c.GetConfig(ctx).Execute()
+	if err != nil {
+		return fmt.Errorf("failed to retrieve config: %w", err)
+	}
+
+	config := response.GetConfig()
+
+	// Any numeric values that were decoded as floats need to be converted to
+	// integers. InfluxDB currently does not have any float config values, and
+	// this prevents formatting issues with the output.
+	for k, v := range config {
+		if f, ok := v.(float64); ok {
+			config[k] = int(f)
+		}
+	}
+
+	if params.TOML {
+		return toml.NewEncoder(c.StdIO).Encode(config)
+	} else if params.YAML {
+		return yaml.NewEncoder(c.StdIO).Encode(config)
+	}
+
+	return c.PrintJSON(config)
+}