feat: implement API key scopes database migration (#19861)

Added database migration for API key scopes.

Fixes #19845

scripts/generate_api_key_scope_enum/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+	"sort"
+
+	"github.com/coder/coder/v2/coderd/rbac/policy"
+)
+
+func main() {
+	seen := map[string]struct{}{}
+	var vals []string
+	for resource, def := range policy.RBACPermissions {
+		if resource == policy.WildcardSymbol {
+			continue
+		}
+		for action := range def.Actions {
+			vals = append(vals, fmt.Sprintf("%s:%s", resource, action))
+		}
+	}
+	sort.Strings(vals)
+	for _, v := range vals {
+		if _, ok := seen[v]; ok {
+			continue
+		}
+		seen[v] = struct{}{}
+		_, _ = fmt.Printf("ALTER TYPE api_key_scope ADD VALUE IF NOT EXISTS '%s';\n", v)
+	}
+}