chore: update yaml tag for tools (#2356)

Update yaml tag in tools from `kind` to `type`.

Upcoming PRs: 
* Update config in `/tests` and `/docs`

Will resolve other unit tests failure in the final PR to keep things
simpler.

internal/tools/postgres/postgresdatabaseoverview/postgresdatabaseoverview.go

@@ -26,7 +26,7 @@ import (
 	"github.com/jackc/pgx/v5/pgxpool"
 )
 
-const kind string = "postgres-database-overview"
+const resourceType string = "postgres-database-overview"
 
 const databaseOverviewStatement = `
 	SELECT
@@ -43,8 +43,8 @@ const databaseOverviewStatement = `
 `
 
 func init() {
-	if !tools.Register(kind, newConfig) {
-		panic(fmt.Sprintf("tool type %q already registered", kind))
+	if !tools.Register(resourceType, newConfig) {
+		panic(fmt.Sprintf("tool type %q already registered", resourceType))
 	}
 }
 
@@ -63,7 +63,7 @@ type compatibleSource interface {
 
 type Config struct {
 	Name         string   `yaml:"name" validate:"required"`
-	Type         string   `yaml:"kind" validate:"required"`
+	Type         string   `yaml:"type" validate:"required"`
 	Source       string   `yaml:"source" validate:"required"`
 	Description  string   `yaml:"description"`
 	AuthRequired []string `yaml:"authRequired"`
@@ -73,7 +73,7 @@ type Config struct {
 var _ tools.ToolConfig = Config{}
 
 func (cfg Config) ToolConfigType() string {
-	return kind
+	return resourceType
 }
 
 func (cfg Config) Initialize(srcs map[string]sources.Source) (tools.Tool, error) {